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The dataset generation failed because of a cast error
Error code:   DatasetGenerationCastError
Exception:    DatasetGenerationCastError
Message:      An error occurred while generating the dataset

All the data files must have the same columns, but at some point there are 2 new columns ({'Name', 'CategoryID'}) and 2 missing columns ({'data', 'errors'}).

This happened while the json dataset builder was generating data using

hf://datasets/antoinelb7/alloprof/data/questions/categories.json (at revision 0faa90fee1ad1a6e3e461d7be49abf71488e6687)

Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 2011, in _prepare_split_single
                  writer.write_table(table)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 585, in write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2302, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2256, in cast_table_to_schema
                  raise CastError(
              datasets.table.CastError: Couldn't cast
              Name: string
              CategoryID: int64
              to
              {'data': {'file': {'breadcrumbs': {'children': [{'routerLink': Value(dtype='string', id=None), 'title': Value(dtype='string', id=None)}], 'current': {'routerLink': Value(dtype='string', id=None), 'title': Value(dtype='string', id=None)}, 'parents': [{'routerLink': Value(dtype='string', id=None), 'title': Value(dtype='string', id=None)}], 'root': {'routerLink': Value(dtype='string', id=None), 'title': Value(dtype='string', id=None)}}, 'code': Value(dtype='string', id=None), 'image': Value(dtype='null', id=None), 'imageStyles': Sequence(feature=Value(dtype='null', id=None), length=-1, id=None), 'introduction': Value(dtype='string', id=None), 'lang': Value(dtype='string', id=None), 'levels': Sequence(feature=Value(dtype='int64', id=None), length=-1, id=None), 'metatags': [{'attributes': {'content': Value(dtype='string', id=None), 'href': Value(dtype='string', id=None), 'name': Value(dtype='string', id=None), 'property': Value(dtype='string', id=None), 'rel': Value(dtype='string', id=None)}, 'tag': Value(dtype='string', id=None)}], 'navigation': [{'anchor': Value(dtype='string', id=None), 'level': Value(dtype='string', id=None), 'text': Value(dtype='string', id=None), 'type': Value(dtype='null', id=None)}], 'oppositeFile': {'title': Value(dtype='string', id=None), 'url': Value(dtype='string', id=None)}, 'otherLangSlug': Value(dtype='string', id=None), 'otherLangUrl': Value(dtype='string', id=None), 'parentCode': Value(dtype='null', id=None), 'parentUuid': Value(dtype='null', id=N
              ...
              nce(feature=Value(dtype='null', id=None), length=-1, id=None), 'tags': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'title': Value(dtype='string', id=None), 'uuid': Value(dtype='string', id=None), 'videoId': Value(dtype='string', id=None)}, 'vocabularies': [{'audio': Value(dtype='string', id=None), 'image': {'alt': Value(dtype='string', id=None), 'url': Value(dtype='string', id=None)}, 'imageStyles': [{'link': Value(dtype='string', id=None), 'style': Value(dtype='string', id=None)}], 'name': Value(dtype='string', id=None), 'translation': Value(dtype='string', id=None), 'type': Value(dtype='string', id=None), 'uuid': Value(dtype='string', id=None)}], 'width': Value(dtype='int64', id=None)}], 'slug': Value(dtype='string', id=None), 'title': Value(dtype='string', id=None), 'type': Value(dtype='string', id=None), 'uuid': Value(dtype='string', id=None)}], 'slug': Value(dtype='string', id=None), 'subtype': Value(dtype='string', id=None), 'tags': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'title': Value(dtype='string', id=None), 'topic': Value(dtype='string', id=None), 'type': Value(dtype='string', id=None), 'uuid': Value(dtype='string', id=None)}}, 'errors': [{'extensions': {'code': Value(dtype='string', id=None)}, 'locations': [{'column': Value(dtype='int64', id=None), 'line': Value(dtype='int64', id=None)}], 'message': Value(dtype='string', id=None), 'path': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None)}]}
              because column names don't match
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1321, in compute_config_parquet_and_info_response
                  parquet_operations = convert_to_parquet(builder)
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 935, in convert_to_parquet
                  builder.download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1027, in download_and_prepare
                  self._download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1122, in _download_and_prepare
                  self._prepare_split(split_generator, **prepare_split_kwargs)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1882, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 2013, in _prepare_split_single
                  raise DatasetGenerationCastError.from_cast_error(
              datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
              
              All the data files must have the same columns, but at some point there are 2 new columns ({'Name', 'CategoryID'}) and 2 missing columns ({'data', 'errors'}).
              
              This happened while the json dataset builder was generating data using
              
              hf://datasets/antoinelb7/alloprof/data/questions/categories.json (at revision 0faa90fee1ad1a6e3e461d7be49abf71488e6687)
              
              Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)

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errors
null
data
dict
null
{ "file": { "breadcrumbs": { "children": null, "current": { "routerLink": "/fr/eleves/bv/francais/le-sens-concret-et-le-sens-abstrait-f1539", "title": "Le sens concret et le sens abstrait" }, "parents": null, "root": { "routerLink": "/en/students/vl/french", "title": "French" } }, "code": "f1539", "image": null, "imageStyles": [], "introduction": "", "lang": "fr", "levels": [ 5, 6, 7, 8, 9 ], "metatags": [ { "attributes": { "content": null, "href": "https://cms.alloprof.qc.ca/en/node/32102", "name": null, "property": null, "rel": "canonical" }, "tag": "link" }, { "attributes": { "content": "Le sens concret et le sens abstrait | Alloprof", "href": null, "name": "title", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Le sens concret d'un mot renvoie à une chose matérielle. Le sens abstrait d'un mot réfère à une idée ou à quelque chose qu'on ne peut voir ou toucher.", "href": null, "name": "description", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Alloprof", "href": null, "name": null, "property": "og:site_name", "rel": null }, "tag": "meta" }, { "attributes": { "content": "article", "href": null, "name": null, "property": "og:type", "rel": null }, "tag": "meta" }, { "attributes": { "content": "https://cms.alloprof.qc.ca/node/32102", "href": null, "name": null, "property": "og:url", "rel": null }, "tag": "meta" }, { "attributes": { "content": "Le sens concret et le sens abstrait", "href": null, "name": null, "property": "og:title", "rel": null }, "tag": "meta" } ], "navigation": null, "oppositeFile": null, "otherLangSlug": "le-sens-concret-et-le-sens-abstrait", "otherLangUrl": "/fr/eleves/bv/francais/le-sens-concret-et-le-sens-abstrait-f1539", "parentCode": null, "parentUuid": null, "promoted": false, "published": true, "references": { "links": [ { "text": "Fiche synthèse sur la polysémie", "typeLink": "external", "url": "http://yael.boublil.free.fr/la_polysemie.htm" }, { "text": "Article complet et détaillé sur la polysémie lexicale et langagière", "typeLink": "external", "url": "http://www.home.uni-osnabrueck.de/bschwisc/archives/polysemie.htm" }, { "text": "La polysémie : article de Wikipedia", "typeLink": "external", "url": "http://fr.wikipedia.org/wiki/Polysémie" } ], "texts": [] }, "removeAudioPlayback": false, "sections": [ { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>​On oppose généralement <strong>le sens concret</strong> et <strong>le sens abstrait</strong> que peut prendre un même mot.</p>\r\n\r\n<ol>\r\n\t<li><strong>Le sens concret</strong> renvoie à un objet, à une chose matérielle. Il réfère au monde physique perçu par les sens (nature, objets, êtres, animaux, sensations, actions).&nbsp;</li>\r\n\t<li><strong>Le sens abstrait </strong>réfère à une idée,&nbsp;à une chose qu'on ne peut voir&nbsp;ni toucher. Il renvoie à la pensée, à ce qui perçu par l'esprit. Il ne désigne pas une&nbsp;chose, mais une caractéristique ou une qualité de celle-ci.&nbsp;</li>\r\n</ol>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "1e60e085-10b1-4aa0-a8a3-203b9a0f69c5", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "a41b7501-c00f-416a-9fb8-113e50839391", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<ol>\r\n\t<li>Je rénove la <strong>cuisine</strong>.<br/>\r\n\t<em>Cuisine </em>est employé dans&nbsp;son sens concret, il s'agit de la pièce d'une maison, élément observable et tangible.</li>\r\n\t<li>Je prends un cours de <strong>cuisine</strong>.<br/>\r\n\t<em>Cuisine </em>est employé dans un sens abstrait qui&nbsp;réfère à&nbsp;l'art culinaire,&nbsp;concept&nbsp;non observable à l'oeil nu.</li>\r\n</ol>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "2f7821d1-7638-4c44-94a5-573a01ce1109", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "7f55ec2d-67a7-40f0-b67a-991c2da20ab3", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": [ { "anchor": "", "level": 1, "text": "La polysémie", "type": "linkTdm", "typeLink": "internal", "url": "/en/node/31282", "uuid": "b378c37b-e49f-4eee-9e08-3f024a3c4f7d" } ], "slug": null, "slugParagraph": null, "source": null, "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "tableOfContents", "uuid": "e8023fb0-a6d8-4d86-98ac-69f774f2989e", "video": null } ], "subtype": "ensavoirplus", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "e6ea37c2-29e6-46d3-ba53-d5c2c75049ec", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": null, "title": null, "type": "moduleContent", "uuid": "1ae4a194-e09b-488e-8fe8-502e693429b9" } ], "slug": "le-sens-concret-et-le-sens-abstrait", "subtype": "", "tags": [ "cuisine", "réfère", "sens", "concret", "chose", "concept", "sens concret", "sens abstrait" ], "title": "Le sens concret et le sens abstrait", "topic": "french", "type": "file", "uuid": "0004293d-0a4f-4388-a6d6-dc02124d0302" } }
null
{ "file": { "breadcrumbs": { "children": null, "current": { "routerLink": "/fr/eleves/bv/sciences/l-usinage-ou-le-faconnage-s1456", "title": "L'usinage (ou le façonnage)" }, "parents": [ { "routerLink": "/en/students/vl/sciences/manufacturing-processes-s1454", "title": "Manufacturing Processes" } ], "root": { "routerLink": "/en/students/vl/sciences", "title": "Science and Technology" } }, "code": "s1456", "image": null, "imageStyles": [], "introduction": "", "lang": "fr", "levels": [ 9, 10 ], "metatags": [ { "attributes": { "content": null, "href": "https://cms.alloprof.qc.ca/en/node/30947", "name": null, "property": null, "rel": "canonical" }, "tag": "link" }, { "attributes": { "content": "L'usinage (ou le façonnage) | Secondaire | Alloprof", "href": null, "name": "title", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Le façonnage permet de configurer un matériau selon les informations fournies dans la gamme de fabrication. Le sciage, le taraudage, le formage et le moulage sont des exemples de techniques d’usinage.", "href": null, "name": "description", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Matériau, taraudage, métal, perçage, cambrage, scie, usinage, façonnage, découpage, sciage, filetage, pliage, ébauchage", "href": null, "name": "keywords", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Alloprof", "href": null, "name": null, "property": "og:site_name", "rel": null }, "tag": "meta" }, { "attributes": { "content": "article", "href": null, "name": null, "property": "og:type", "rel": null }, "tag": "meta" }, { "attributes": { "content": "https://cms.alloprof.qc.ca/node/30947", "href": null, "name": null, "property": "og:url", "rel": null }, "tag": "meta" }, { "attributes": { "content": "L'usinage (ou le façonnage)", "href": null, "name": null, "property": "og:title", "rel": null }, "tag": "meta" } ], "navigation": [ { "anchor": "les-techniques-d-usinage", "level": "2", "text": "Les techniques d’usinage", "type": null }, { "anchor": "le-cambrage", "level": "3", "text": "Le cambrage", "type": null }, { "anchor": "le-decoupage-ou-sciage", "level": "3", "text": "Le découpage (ou sciage)", "type": null }, { "anchor": "le-denudage", "level": "3", "text": "Le dénudage", "type": null }, { "anchor": "l-epissurage", "level": "3", "text": "L’épissurage", "type": null }, { "anchor": "la-fabrication-additive-ou-l-impression-3d", "level": "3", "text": "La fabrication additive (ou l’impression 3D)", "type": null }, { "anchor": "le-filetage", "level": "3", "text": "Le filetage ", "type": null }, { "anchor": "le-laminage", "level": "3", "text": "Le laminage", "type": null }, { "anchor": "le-moulage", "level": "3", "text": "Le moulage", "type": null }, { "anchor": "le-moulage-par-injection-soufflage", "level": "3", "text": "Le moulage par injection-soufflage ", "type": null }, { "anchor": "le-percage", "level": "3", "text": "Le perçage ", "type": null }, { "anchor": "le-profilage", "level": "3", "text": "Le profilage ", "type": null }, { "anchor": "la-soudure-a-l-etain", "level": "3", "text": "La soudure à l’étain ", "type": null }, { "anchor": "le-taraudage", "level": "3", "text": "Le taraudage", "type": null }, { "anchor": "le-tournage", "level": "3", "text": "Le tournage ", "type": null }, { "anchor": "a-voir-aussi", "level": "2", "text": "À voir aussi", "type": null } ], "oppositeFile": null, "otherLangSlug": "l-usinage-ou-le-faconnage", "otherLangUrl": "/fr/eleves/bv/sciences/l-usinage-ou-le-faconnage-s1456", "parentCode": null, "parentUuid": null, "promoted": false, "published": true, "references": { "links": [], "texts": [] }, "removeAudioPlayback": false, "sections": [ { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Une fois le <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"0d6ac15f-7aea-4f11-bc59-13d030b27b0a\" href=\"/fr/eleves/bv/sciences/sciences-le-mesurage-et-le-tracage-s1455\">mesurage et le traçage</a> terminés, on peut procéder au <strong>processus d’usinage</strong> des matériaux.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "68264d4f-61fe-41d5-aab4-79a59df70983", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>L’<strong>usinage</strong>, aussi nommé <em>façonnage</em>, est l’action de modifier un matériau pour lui donner la configuration voulue à l’aide d’outils et de machines-outils.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "c9397498-bd9e-4c04-8757-1fc39973b1b7", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "fa8f4c27-b003-4673-a2ac-66a96ea8f075", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Lors de l’usinage, on utilise différents outils et diverses techniques afin de façonner les pièces telles qu’elles sont décrites par les <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"ccf8ea9f-1f07-4d9e-b72c-587180861b92\" href=\"/fr/eleves/bv/sciences/le-dessin-de-fabrication-s1409\">dessins de fabrication</a> présentés dans la <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"29e34767-0f97-41d4-87f4-4265ab076e3d\" href=\"/fr/eleves/bv/sciences/la-gamme-de-fabrication-s1452#gamme-fabrication\">gamme de fabrication</a>.</p>\r\n\r\n<p>L’usinage se déroule généralement de la façon suivante.</p>\r\n\r\n<ol>\r\n\t<li>\r\n\t<p>L’ébauchage</p>\r\n\t</li>\r\n\t<li>\r\n\t<p>Le choix des outils et des techniques</p>\r\n\t</li>\r\n\t<li>\r\n\t<p>Le façonnage du matériau</p>\r\n\t</li>\r\n</ol>\r\n\r\n<p>D’abord, l’ébauchage consiste à couper grossièrement le matériau afin d’en retirer les parties superflues et de ne conserver que la portion nécessaire à la fabrication.<br/>\r\n<br/>\r\nEnsuite, les techniques, les instruments et les outils sont choisis en fonction du type de matériau à façonner. Par exemple, puisque les métaux sont généralement plus durs que le bois, on utilise des forets et des lames de scie de nature différente pour travailler ces matériaux.<br/>\r\n<br/>\r\nFinalement, le façonnement de la pièce permet de donner la configuration souhaitée aux matériaux.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "65457b40-517f-475e-b2ad-4ff52e81920c", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": null, "title": null, "type": "moduleContent", "uuid": "33a7a2a1-fbc1-4662-b1b4-dacd3ff09b18" }, { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>De nombreuses techniques permettent de <strong>façonner</strong> un matériau. Voici les plus fréquemment utilisées.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "24a29716-f3d8-4a28-b52c-a69cc072dc8d", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": [ { "description": null, "finalSlug": null, "finalTitle": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": [ { "anchor": "", "level": 1, "text": "Le cambrage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-cambrage", "uuid": "3f20a5c3-3b2e-47e5-8ebd-bc923efa826d" }, { "anchor": "", "level": 1, "text": "Le découpage (ou sciage)", "type": "linkTdm", "typeLink": "anchor", "url": "#le-decoupage-ou-sciage", "uuid": "0f409847-17d6-4bee-9f1a-2ba2ed1376ff" }, { "anchor": "", "level": 1, "text": "Le dénudage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-denudage", "uuid": "855449e6-3014-4111-9ea0-10ee32ee61ab" }, { "anchor": "", "level": 1, "text": "L’épissurage", "type": "linkTdm", "typeLink": "anchor", "url": "#l-epissurage", "uuid": "135ac2f4-bc54-4716-a130-e4fd3c1414f0" }, { "anchor": "", "level": 1, "text": "La fabrication additive (ou l’impression 3D)", "type": "linkTdm", "typeLink": "anchor", "url": "#la-fabrication-additive-ou-l-impression-3d", "uuid": "85eb2fbc-24b9-4744-b3ac-86dd048064da" }, { "anchor": "", "level": 1, "text": "Le filetage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-filetage", "uuid": "93f24e20-d025-4c12-94e8-b27bd73eb108" }, { "anchor": "", "level": 1, "text": "Le laminage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-laminage", "uuid": "03c791bc-1989-4f73-9784-7210b6717918" } ], "slug": null, "slugParagraph": null, "source": null, "text": "", "title": null, "titleParagraph": null, "type": "tableOfContents", "uuid": "1ed4f6d6-8add-443c-bee9-d0773ce178f0", "video": null } ], "column2": [ { "description": null, "finalSlug": null, "finalTitle": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": [ { "anchor": "", "level": 1, "text": "Le moulage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-moulage", "uuid": "7c220d9d-be72-4589-80a4-0a0d089ea2d2" }, { "anchor": "", "level": 1, "text": "Le moulage par injection-soufflage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-moulage-par-injection-soufflage", "uuid": "83f24de5-e3fa-4b99-a54b-d99e5e1f53b3" }, { "anchor": "", "level": 1, "text": "Le perçage ", "type": "linkTdm", "typeLink": "anchor", "url": "#le-percage", "uuid": "6aba3940-6002-4c7c-9b2b-e6be8a457a52" }, { "anchor": "", "level": 1, "text": "Le profilage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-profilage", "uuid": "980d5e30-83b0-4c76-b56f-af6472ed008b" }, { "anchor": "", "level": 1, "text": "La soudure à l’étain", "type": "linkTdm", "typeLink": "anchor", "url": "#la-soudure-a-l-etain", "uuid": "4b98a361-e79a-464b-b185-4695d3691acf" }, { "anchor": "", "level": 1, "text": "Le taraudage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-taraudage", "uuid": "3c2649bb-4aa4-4158-aa86-32d6c2003f33" }, { "anchor": "", "level": 1, "text": "Le tournage", "type": "linkTdm", "typeLink": "anchor", "url": "#le-tournage", "uuid": "b3431337-2d06-4277-bc97-e53d3b8f880d" } ], "slug": null, "slugParagraph": null, "source": null, "text": "", "title": null, "titleParagraph": null, "type": "tableOfContents", "uuid": "0986019d-5b99-443c-925a-89be8c6ae5e7", "video": null } ], "column3": [], "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "99d4bbb5-1583-4920-9547-8631fd481dcf", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-cambrage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le cambrage", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "50af5bf2-47e1-4f76-aa17-49060e8f56f8", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>cambrage</strong>, parfois appelé <em>pliage</em>, est une technique qui consiste à plier un matériau de façon permanente afin de modifier sa forme.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "0b9a36b3-3099-4a02-941a-20f7a5858877", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "147a0d50-bf0b-4edd-9479-c0d50b7df6cf", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Les matériaux les plus susceptibles de faire l’objet d’un cambrage sont les métaux et les thermoplastiques puisqu’ils ont une bonne <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"c5a1d7bf-2a8a-4d19-8196-901c3db23830\" href=\"/fr/eleves/bv/sciences/les-proprietes-des-materiaux-s1447#la-malleabilite\">malléabilité</a>. Le cambrage provoque une déformation plastique du matériau usiné; le pli y reste marqué de façon permanente.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "a6dfc407-f254-4883-a6ba-90437e819008", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Pour réaliser un pliage, on peut utiliser une presse à plier. Les feuilles de métal y sont pliées par la pression exercée entre le poinçon (la partie supérieure de la presse) et la matrice (la partie inférieure de la presse) qui ont des formes en V.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "6f5298b1-8b17-4c06-b99a-e7370e988894", "video": null }, { "column1": null, "column2": null, "column3": null, "description": "<h6>Zhak Yaroslav, Shutterstock.com</h6>\r\n", "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": "false", "image": { "alt": "Le pliage d’une pièce mince en acier", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-02/is1456-1-pliage%20.jpg?itok=dggKJUuO" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-02/is1456-1-pliage%20.jpg?itok=k1UWPbuW", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-02/is1456-1-pliage%20.jpg?itok=Gz-CrrLK", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-02/is1456-1-pliage%20.jpg?itok=RSuIk-_B", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-02/is1456-1-pliage%20.jpg?itok=dggKJUuO", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-02/is1456-1-pliage%20.jpg?itok=HokNduHC", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-02/is1456-1-pliage%20.jpg?itok=Cvw2Ae10", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "", "text": null, "title": "Le pliage d’une pièce d’acier", "titleParagraph": null, "totalColumns": null, "type": "media", "uuid": "593b5904-992c-456b-acf8-9e94fbdaa152", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "84b80857-3e59-4a11-ab63-ce92e1721126", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-decoupage-ou-sciage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le découpage (ou sciage)", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "6d2e6f9a-1d79-4070-8cf5-f3b31e5f2369", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>découpage</strong> consiste à couper un matériau afin de lui donner la forme désirée. Lorsqu’on découpe un matériau à l’aide d’une scie, on nomme cette technique le <em>sciage</em>.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "0337bd0a-6687-4144-b8c5-f05a430490ff", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "6036cdc2-7fda-46c2-8b3a-340064ccd990", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Il existe plusieurs outils permettant d’effectuer le découpage d’une pièce. La sélection de l’outil approprié se fait en fonction de la nature du matériau à couper ainsi que de son épaisseur.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "574828a8-0897-43ce-a55e-dc4dd37aa4d5", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": true, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Voici des exemples d’<a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"b22c6973-a8f6-4e15-802f-7f9fc8035609\" href=\"/fr/eleves/bv/sciences/le-materiel-utilise-en-atelier-s1483#decouper\">outils</a> et de machines-outils permettant le découpage.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "b6f137fb-99a7-41e0-8ca9-afbc4809b341", "video": null }, { "column1": [ { "description": "", "hasDecoration": "false", "image": { "alt": "Une scie à onglets", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-2-scie-a%CC%80-onglets.jpg?itok=TxaVc8EB" }, "imageEnableZoom": false, "imageMaxWidth": null, 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"source": "", "text": null, "title": "Une scie à onglets", "type": "media", "uuid": "9022bf1f-ac7f-41da-9d33-33724e474999" } ], "column2": [ { "description": "", "hasDecoration": "false", "image": { "alt": "Une scie à ruban", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-3-scie-a%CC%80-ruban.jpg?itok=Qzq9XgZh" }, "imageEnableZoom": false, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-3-scie-a%CC%80-ruban.jpg?itok=S8xh26-3", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-3-scie-a%CC%80-ruban.jpg?itok=ptl_kgXi", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-3-scie-a%CC%80-ruban.jpg?itok=iVF6aTDq", "style": "1080w" }, { "link": 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"link": null, "slug": null, "source": "", "text": null, "title": "Un compas à couteau rotatif", "type": "media", "uuid": "6444625e-4257-4428-9e6b-72f2f6a76a1d" } ], "column3": [], "description": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "a5ab438e-b9df-4148-80b0-6d32e139812f", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "127f4bfe-7009-400c-bf37-1df4427622b8", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-denudage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le dénudage", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "770b989a-5ff4-4c19-ae7a-29ae101e60d3", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>dénudage</strong> est une technique consistant à retirer la gaine isolante de l’extrémité d’un fil conducteur.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "8f3c2cee-de25-4be9-a7c0-1b53105272fa", "video": null } ], "subtype": "definition", 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"exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "l-epissurage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "L’épissurage", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "5bbd6894-8141-4157-afc9-592bc360da5c", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>L’<strong>épissurage</strong> consiste à torsader ensemble les filaments métalliques de deux fils conducteurs afin d’assurer leur liaison.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "2d55b55c-98be-4bbd-a9d4-7f3095f93ae5", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "7bfaacd7-dce7-4dcb-bf97-592df85f8ae5", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Lorsqu’on fabrique un circuit électrique, on doit parfois lier des fils conducteurs. Une fois la gaine isolante retirée à l’extrémité des fils, on doit s’assurer de maintenir les matériaux conducteurs en contact. Pour ce faire, on réalise une épissure, c’est-à-dire qu’on tord les filaments des deux fils ensemble de manière à former une hélice. 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"finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "la-fabrication-additive-ou-l-impression-3d", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "La fabrication additive (ou l’impression 3D)", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "9645a8b0-f083-4db5-9e8d-95d5ffcc78c9", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>La <strong>fabrication additive</strong> est une technique consistant à construire une pièce en trois dimensions au moyen d’une machine-outil (imprimante 3D) qui contrôle, par l’entremise d’un logiciel, l’ajout de couches successives de matériaux.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "25c0e8a5-3add-47d2-8b3e-06d6fc2cd96d", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "4f8dcf7a-56c1-4d41-ac6a-08e0f7960c6b", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Un logiciel de dessin assisté par ordinateur (DAO) permet de créer un fichier dans lequel l’<a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"ad3be569-2dbe-4c67-b09b-16048c25c119\" href=\"/fr/eleves/bv/sciences/les-objets-technologiques-s1403\">objet technique</a> est modélisé. Ce modèle tridimensionnel est ensuite interprété par l’imprimante 3D. Celle-ci superpose alors de fines couches de matériaux plastiques afin de fabriquer l’objet désiré.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "196da35b-4501-4330-a61e-2e074b0451d6", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": "<h6>Marina Grigorivna, Shutterstock.com</h6>\r\n", "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": "false", "image": { "alt": "Impression d’une pièce de plastique par impression 3D ", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=GQoUxmYb" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=rgLvhP2V", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=uMP1W5P-", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=fkDmctjd", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=GQoUxmYb", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=jOtsq275", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-8-fabrication%20additive_0.jpg?itok=_HD5rQAp", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "", "text": null, "title": "Une pièce construite par fabrication additive", "titleParagraph": null, "totalColumns": null, "type": "media", "uuid": "1766259a-396c-426c-9bb8-bfe6ea9396c6", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "73f97ac7-879f-4ef9-aa53-f35793d4cc01", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-filetage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le filetage ", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "273443ca-6fe1-4def-a3f6-99c41f704300", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>filetage</strong> est une technique qui permet de graver des filets autour d’une tige.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "509ba92d-2a7b-40d6-9391-6cec36a5a0c6", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "bc4bd298-0a0d-43da-ba42-b08c7ba52291", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Le filetage est une technique complémentaire au <a href=\"#le-taraudage\">taraudage</a>. Cette technique permet de façonner un filet hélicoïdal autour d’une pièce cylindrique. Une vis est un exemple commun d’objet façonné par filetage. La filière utilisée doit être choisie en fonction de la nature du matériau, de la dimension de la tige à fileter ainsi que du type de filet désiré.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "18129367-d843-412a-911b-6ed86c9652d8", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": true, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Voici des exemples d’outils permettant le filetage.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "a9fac498-647a-4b94-adca-aa073bdf8db2", "video": null }, { "column1": [ { "description": "<h6>a_v_d, Shutterstock.com</h6>\r\n", "hasDecoration": "false", "image": { "alt": "Un porte-filière et cinq filières de dimensions différentes", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=JEqCDIzl" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=EmBo1FJu", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=C2WH45xb", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=qCWZAmuY", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=JEqCDIzl", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=v9981dCX", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-9-porte-fili%C3%A8re_0.jpg?itok=LL-wbLOw", "style": "1920w" } ], "legend": null, "link": null, "slug": null, "source": "", "text": null, "title": "Un porte-filière et cinq filières de dimensions différentes", "type": "media", "uuid": "6c461a6d-8c17-46af-8b19-44b76ca48042" } ], "column2": [ { "description": "<h6>KPixMining, Shutterstock.com</h6>\r\n", "hasDecoration": "false", "image": { "alt": "Une tige métallique insérée dans une filière", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/asfd.jpg?itok=YRot41rP" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/asfd.jpg?itok=Hxd2XKRc", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/asfd.jpg?itok=UHTudK8N", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/asfd.jpg?itok=GjWSkkfO", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/asfd.jpg?itok=YRot41rP", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/asfd.jpg?itok=mpHuU4a4", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/asfd.jpg?itok=aTtJfDp-", "style": "1920w" } ], "legend": null, "link": null, "slug": null, "source": "", "text": null, "title": "Le filetage d’une tige métallique", "type": "media", "uuid": "f674235c-bd44-47ef-820f-6977db083a82" } ], "column3": [], "description": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "71e68ac5-1d62-40ee-b500-edfeced59347", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "dd969355-3b78-4f68-af67-ebea02cc9228", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-laminage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le laminage", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "8c8952ac-4c3f-43cb-8e8f-10006b5c0b99", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>laminage</strong> est une technique d’usinage qui consiste à aplatir un matériau de manière permanente en le compressant entre deux cylindres lisses.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "35af9ea0-7e81-475a-93d0-747dc074318c", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "16c302b1-6281-4de7-b4e3-5e67f582bf9c", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Tout comme le pliage, le laminage provoque une déformation plastique du matériau usiné. De plus, cette technique est souvent complémentaire au pliage alors qu’elle permet de produire des matériaux en feuilles, ce qui les rend plus malléables en vue d’un pliage.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "27afedc2-4570-4ec7-8d87-e3efb829de7f", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": "<h6>Vdovichenko Denis, Shutterstock.com</h6>\r\n", "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": "false", "image": { "alt": "Production de tôle d’acier par laminage", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-11-laminage.jpg?itok=OppAmSWH" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-11-laminage.jpg?itok=3VYfZUHp", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-11-laminage.jpg?itok=n3LdUaeu", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-11-laminage.jpg?itok=QmWZdsYu", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-11-laminage.jpg?itok=OppAmSWH", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-11-laminage.jpg?itok=8FP8-Bf8", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-11-laminage.jpg?itok=FqvWoDSR", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "", "text": null, "title": "Le laminage d’une pièce d’acier", "titleParagraph": null, "totalColumns": null, "type": "media", "uuid": "3dfbe177-fbbd-4541-821a-ed5993ea2f1e", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "15142b59-dc33-46c1-8b2b-5bce7f994455", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-moulage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le moulage", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "adfcfbf5-98ab-401c-8b94-01016b67e0b2", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>moulage</strong> est la mise en forme, à chaud, d’un métal ou d’une matière plastique à l’aide d’un moule.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "69f9d100-d293-44ab-b935-047b5a35b1db", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "74b77e2b-10db-4e23-9d8e-4cf6e90ee7c7", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Lors du moulage, un matériau rendu liquide est coulé dans un moule creux duquel il sera retiré après sa solidification. Les <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"7cbaa95e-f134-4aa1-80b3-cd9f1dfc6688\" href=\"/fr/eleves/bv/sciences/les-matieres-plastiques-s1550\">plastiques</a>, le verre et l’aluminium sont des matériaux fréquemment utilisés pour façonner un objet par moulage.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "acbbb856-bcfc-4002-9273-2e355a136e79", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": "<h6>Shestakov Dmytro, Shutterstotck.com</h6>\r\n", "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": "false", "image": { "alt": "Le moulage d’une pièce métallique ", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-12-moulage.jpg?itok=Ru6cE_Bz" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-12-moulage.jpg?itok=5ziHcneO", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-12-moulage.jpg?itok=ad1z_Sbj", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-12-moulage.jpg?itok=JSf05YYq", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-12-moulage.jpg?itok=Ru6cE_Bz", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-12-moulage.jpg?itok=_jwH_7vA", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-12-moulage.jpg?itok=c_Dn3VOf", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "", "text": null, "title": "Le moulage d’une pièce métallique ", "titleParagraph": null, "totalColumns": null, "type": "media", "uuid": "84063396-41cd-4460-9dbf-0ac6bc8d8b2e", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "8da984f1-b8d7-4a2b-8801-382cb2b496ef", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-moulage-par-injection-soufflage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le moulage par injection-soufflage ", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "515dd056-3a5d-4f9c-9be7-846ea4105ba2", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>moulage</strong> <strong>par injection-soufflage</strong> consiste à verser un matériau dans un moule fermé. De l’air y est ensuite injecté, ce qui pousse le matériau vers les parois du moule.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "86e100c7-b1dd-420b-bdc8-60faf86b52e4", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "384fbf7a-bb03-469a-9f94-1c0014b0c6d9", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Cette technique permet de fabriquer des pièces creuses comme des bouteilles de plastique.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "941082b2-4505-4aaa-9419-16db0c81eef2", "video": null }, { "column1": null, "column2": null, "column3": null, "description": "<h6>Pixel B, Shutterstock.com</h6>\r\n", "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": "false", "image": { "alt": "Bouteille de plastique fabriquée par injection-soufflage", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=WA4G8xt8" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=3tzyPUoP", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=dN1lpNiN", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=N_CF5MYS", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=WA4G8xt8", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=UMlvzRM7", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-13-injection%20soufflage.jpg?itok=fRkCJd4f", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "", "text": null, "title": "Le moulage d’une bouteille de plastique par injection-soufflage", "titleParagraph": null, "totalColumns": null, "type": "media", "uuid": "a856dd29-3aae-4dd8-8d52-875d36986891", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "a59f926c-1019-496b-b9f7-1e3f1b5c7a68", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-percage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le perçage ", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "c2cc6b19-685d-4eba-90b3-79905263d5fa", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>perçage</strong> consiste à faire un trou cylindrique dans un matériau.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "4f256b8d-623d-41b6-afa1-9f53f47cd0cc", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "4b75663f-18a2-4c37-8a9d-1e2def2365cc", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": true, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Voici des exemples d’outils et de machines-outils permettant d’effectuer un perçage.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "c90f9fcb-3a4e-488a-8f51-cc5eb6e87c1e", "video": null }, { "column1": [ { "description": "", "hasDecoration": "false", "image": { "alt": "Une perceuse électrique", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=EN4w6DLV" }, "imageEnableZoom": false, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=0Mhn6KDF", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=pp4bMWOs", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=CfypS543", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=EN4w6DLV", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=nExtawmj", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-14-perceuse-e%CC%81lectrique.jpg?itok=dQEIzIrM", "style": "1920w" } ], "legend": null, "link": null, "slug": null, "source": "", "text": null, "title": "Une perceuse électrique", "type": "media", "uuid": "654c7b9e-d139-4f37-8068-e8d3b82c87fe" } ], "column2": [ { "description": "", "hasDecoration": "false", "image": { "alt": "Une perceuse à colonne ", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=6wD5ZvHS" }, "imageEnableZoom": false, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=WSaNU0Dw", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=H_DD-SEz", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=g9_EYhan", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=6wD5ZvHS", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=KsQ020G3", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-15-perceuse-colonne.jpg?itok=NxBSlc-9", "style": "1920w" } ], "legend": null, "link": null, "slug": null, "source": "", "text": null, "title": "Une perceuse à colonne ", "type": "media", "uuid": "66dff164-9116-4b59-af57-d49ade94541a" } ], "column3": [], "description": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "a00a1978-d1ee-4745-85ae-bd20d69ef82d", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "5e6abfb6-0e1c-4726-b6a6-e0afb6e70f41", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Le perçage s’effectue à l’aide d’un foret (une mèche) qu’on fixe à une perceuse. Il est important de choisir un foret adapté au perçage à effectuer. Ce choix est fait en fonction du diamètre du trou, mais aussi de la nature du matériau à percer. La vitesse de rotation de la perceuse doit aussi être ajustée en fonction de ces deux paramètres. Par exemple, plus la <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"c5a1d7bf-2a8a-4d19-8196-901c3db23830\" href=\"/fr/eleves/bv/sciences/les-proprietes-des-materiaux-s1447#la-durete\">dureté</a> et le diamètre sont grands, plus la vitesse de rotation de la perceuse doit être basse.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "30dd77c5-6136-495e-a3aa-d1456adf34f0", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": 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"0e286b03-336c-4a3c-8723-316ff5a34ded" } ], "column3": [], "description": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "bb28d952-3d91-4527-99a2-6d0582a962a3", "video": null }, { "column1": [ { "description": "<h6>maksimee, Shutterstock.com</h6>\r\n", "hasDecoration": "false", "image": { "alt": "Un foret à bois à tête plate ", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-18-foret-bois-t%C3%AAte%20plate.jpg?itok=ms3RYIR8" }, "imageEnableZoom": false, "imageMaxWidth": null, "imageStyles": [ { "link": 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"link": null, "slug": null, "source": "", "text": null, "title": "Un foret à bois à tête plate ", "type": "media", "uuid": "b11a69a2-4258-406a-8c08-0f81fb7ba68e" } ], "column2": [ { "description": "<h6>Mehmet Cetin, Shutterstock.com</h6>\r\n", "hasDecoration": "false", "image": { "alt": "Une scie emporte-pièce", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=gyH-6_Dm" }, "imageEnableZoom": false, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=OjocrBzh", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=psfoaFR7", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=IUXNhPji", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=gyH-6_Dm", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=yN2vVek6", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-19-emporte-pi%C3%A8ce.jpg?itok=pKXwY4Zg", "style": "1920w" } ], "legend": null, "link": null, "slug": null, "source": "", "text": null, "title": "Une scie emporte-pièce", "type": "media", "uuid": "5062514f-b8b9-47c9-8bab-eaa0e8fc9231" } ], "column3": [], "description": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "5631157e-0460-4bb5-afa5-7e0cd35ba839", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "bbb075dd-fbc1-4e99-8314-4e189d46cadd", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "le-profilage", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le profilage ", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "ea7e4e81-528f-40e4-8381-f36864ed74ad", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>profilage</strong> est une technique permettant de modifier le profil d’un matériau en creusant des rainures sur une pièce généralement longue.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "b3f37e60-0a07-4f01-a319-52ae43122e3d", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "35356e1c-1992-43fb-a25b-197ab522eef6", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": "<h6>Vano Vasaio, Shutterstock.com</h6>\r\n", "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": "false", "image": { "alt": "Le profilage d’une poutre de bois", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-20-profilage.jpg?itok=uFpsxarX" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-20-profilage.jpg?itok=d-NTCCd0", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-20-profilage.jpg?itok=YUBKzNyb", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2022-03/is1456-20-profilage.jpg?itok=LuLiAlOO", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-20-profilage.jpg?itok=uFpsxarX", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2022-03/is1456-20-profilage.jpg?itok=JCF4OhP7", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2022-03/is1456-20-profilage.jpg?itok=8HRFeccw", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "", "text": null, "title": "Le profilage d’une poutre de bois", "titleParagraph": null, "totalColumns": null, "type": "media", "uuid": "cb9eb6fe-e059-440b-b604-172e72a967ff", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "26d233d2-5436-42d2-9798-cb0fe4ad3a58", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "la-soudure-a-l-etain", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "La soudure à l’étain ", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "6edd3ae6-aa1a-4908-96b1-b1ec4d2bf00e", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>La <strong>soudure à l’étain</strong> consiste à lier des pièces métalliques de manière permanente en les couvrant d’étain.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "f17650f0-1ae1-4258-bfdf-67c5cba4f92e", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "637a43a8-fcd4-4482-87b5-176fbf37118c", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Afin de rendre permanente une liaison entre deux pièces métalliques, comme entre les filaments de cuivre de deux fils conducteurs, on fait fondre de l’étain sur les deux pièces en contact. Une fois l’étain solidifié, la liaison entre les deux pièces est <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"80e4ade3-987c-4902-a500-2b7032f411a3\" href=\"/fr/eleves/bv/sciences/la-liaison-s1534#liaison-rigide-ou-elastique\">rigide</a> et <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"80e4ade3-987c-4902-a500-2b7032f411a3\" href=\"/fr/eleves/bv/sciences/la-liaison-s1534#liaison-demontable-ou-indemontable\">permanente</a>.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "91a6ec7d-c3e7-48c1-8772-26a0447b6ee2", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": true, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>La soudure à l’étain est couramment utilisée en électricité. Elle permet entre autres de lier deux fils conducteurs et de fixer des composants sur un circuit imprimé.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "83a8cec8-885e-4493-9121-5a02f950c8b0", "video": null }, { "column1": [ { "description": "<h6>joelpapalini, Shutterstock.com</h6>\r\n", "hasDecoration": "false", "image": { "alt": "La soudure à l’étain de deux fils conducteurs", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2022-03/is1456-21-soudure-deux%20fils.jpg?itok=c4lA4nhS" }, "imageEnableZoom": false, "imageMaxWidth": 600, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2022-03/is1456-21-soudure-deux%20fils.jpg?itok=f79yqNsS", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2022-03/is1456-21-soudure-deux%20fils.jpg?itok=X8i-ZzGe", "style": "720w" }, { "link": 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null, "slugParagraph": null, "source": null, "text": "<p>Le <strong>taraudage</strong> est une technique permettant de produire des filets à l’intérieur des trous d’un matériau déjà percé.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "a3a71de3-99d7-48df-8ff5-4f6ba0920188", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "48723193-9709-42fa-9553-7f8c91a5939e", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Pour réaliser un taraudage, on fixe un taraud sur un porte-taraud (aussi nommé <em>tourne-à-gauche</em>) et on le visse à l’intérieur du matériau à tarauder. 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null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Le tournage ", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "0f3c818b-735d-4ade-a909-785444894bfc", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": 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null
{ "file": { "breadcrumbs": { "children": null, "current": { "routerLink": "/en/students/vl/mathematics/solving-problems-involving-second-degree-polynomial-functions-m1130", "title": "Solving Problems Involving Second-Degree Polynomial Functions " }, "parents": null, "root": { "routerLink": "/en/students/vl/mathematics", "title": "Mathematics" } }, "code": "m1130", "image": null, "imageStyles": [], "introduction": "", "lang": "en", "levels": [ 10 ], "metatags": [ { "attributes": { "content": null, "href": "https://cms.alloprof.qc.ca/en/students/vl/mathematics/solving-problems-involving-second-degree-polynomial-functions-m1130", "name": null, "property": null, "rel": "canonical" }, "tag": "link" }, { "attributes": { "content": "Solving Problems Involving Second-Degree Polynomial Functions | Secondary | Alloprof", "href": null, "name": "title", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Pour résoudre un problème de degré 2, il faut trouver la règle, utiliser les propriétés de la fonction et la factorisation ou la formule quadratique.", "href": null, "name": "description", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Alloprof", "href": null, "name": null, "property": "og:site_name", "rel": null }, "tag": "meta" }, { "attributes": { "content": "article", "href": null, "name": null, "property": "og:type", "rel": null }, "tag": "meta" }, { "attributes": { "content": "https://cms.alloprof.qc.ca/students/vl/mathematics/solving-problems-involving-second-degree-polynomial-functions-m1130", "href": null, "name": null, "property": "og:url", "rel": null }, "tag": "meta" }, { "attributes": { "content": "Solving Problems Involving Second-Degree Polynomial Functions", "href": null, "name": null, "property": "og:title", "rel": null }, "tag": "meta" } ], "navigation": [ { "anchor": "example-where-h-0-and-k-0", "level": "3", "text": "Example Where |h=0| and |k = 0|", "type": null }, { "anchor": "examples-where-h-and-k-are-not-0", "level": "3", "text": "Examples Where |h| and |k| are Non-Zero", "type": null } ], "oppositeFile": null, "otherLangSlug": "la-resolution-de-problemes-impliquant-la-fonction-polynomiale-de-degre-deux", "otherLangUrl": "/fr/eleves/bv/mathematiques/la-resolution-de-problemes-impliquant-la-fonction-polynomiale-de-degre-deux-m1130", "parentCode": null, "parentUuid": null, "promoted": false, "published": true, "references": { "links": [], "texts": [] }, "removeAudioPlayback": false, "sections": [ { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Solving a problem involving a second-degree polynomial function requires understanding all the properties of a <a href=\"#\">polynomial function</a> and knowing how to solve an equation out of context. Consult the following concept sheet if needed: <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"ff32c663-e5d6-4291-aa9e-08ae96a16293\" href=\"/en/students/vl/mathematics/solving-a-second-degree-equation-or-inequality-m1397\">Solving a Second-degree Equation or Inequality.</a></p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "d108a005-6ee3-4a3b-8919-ffd5824d2f03", "video": null } ], "subtype": "important", "surtitle": "", "text": null, "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "c9de6a11-7a34-4490-b8c5-fb72312c1ead", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": [ { "anchor": "", "level": 1, "text": "Example Where |h = 0| and |k = 0| ", "type": "linkTdm", "typeLink": "anchor", "url": "#example-where-h-0-and-k-0", "uuid": "e79d4b3d-d498-4a66-8eb4-67cd90e221c0" }, { "anchor": "", "level": 1, "text": "Examples Where |h| and |k| are non-zero", "type": "linkTdm", "typeLink": "anchor", "url": "#examples-where-h-and-k-are-not-0", "uuid": "8896d7bd-1999-4d0f-914d-f1327a76a1b7" } ], "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "tableOfContents", "uuid": "c9f7365f-3c75-485f-8f1f-d541311e275c", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "example-where-h-0-and-k-0", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Example Where |h=0| and |k = 0|", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "bc012a88-ea8d-4821-b5cc-0f996a24e1ca", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [ { "column1": null, "column2": null, "column3": null, "description": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "slug": null, "source": null, "text": "<p><strong>a)</strong><br/>\r\n<br/>\r\nTo answer question a), use the formula. To calculate the kinetic energy, first <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"f0f45def-20d2-4c55-a3ee-191cf2f8bde6\" href=\"/en/students/vl/mathematics/units-for-measuring-mass-and-their-conversion-m1394#converting-units-of-mass\">convert the mass</a> of the ball into kilograms, since this is the unit of measurement of |m| for the formula for kinetic energy. |58\\ \\text{g}=0.058\\ \\text{kg}|<br/>\r\n||\\begin{align} E_k &amp;= \\frac{1}{2}\\color{blue}{m}v^2 \\\\ E_k &amp;= \\frac{1}{2}\\color{blue}{(0.058)}v^2 \\\\ E_k &amp;=0.029 v^2 \\end{align}||</p>\r\n\r\n<p>Now, we want to know the value of |E_k| when |v=198\\ \\text{km/h}|. Before replacing |v| with the actual speed in the equation of the function, first <a href=\"#\">convert the km/h to m/s</a>. ||\\begin{align} 198\\ \\frac{\\text{km}}{h} &amp;= 198\\ 000\\ \\frac{\\text{m}}{h} \\times \\frac{1\\ \\text{h}}{3\\ 600\\ \\text{s}} \\\\ &amp;= 55\\ \\frac{\\text{m}}{s} \\end{align}||</p>\r\n\r\n<p>Finally, calculate |E_k| when |v=55|.||\\begin{align} E_k &amp;= 0.029\\color{green}{v}^2 \\\\ &amp;= 0.029\\color{green}{(55)}^2 \\\\&amp;= 87.725\\ \\text{joules} \\end{align}||</p>\r\n\r\n<p><strong>Answer</strong>: |E_k=87.725\\ \\text{joules}|</p>\r\n\r\n<hr/>\r\n<p><br/>\r\n<strong>b)</strong><br/>\r\n<br/>\r\nBe careful: here the equation is not the same as in question a), because the mass of the ball is not the same. In this question, |m=44\\ \\text{g}=0.044\\ \\text{kg}|. The formula is therefore:||\\begin{align} E_k &amp;= \\frac{1}{2}\\color{blue}{m}v^2 \\\\ E_k &amp;= \\frac{1}{2}\\color{blue}{(0.044)}v^2 \\\\ E_k &amp;=0.022 v^2 \\end{align}||</p>\r\n\r\n<p>Now we want to know the value of |v| when |E_k=87.725\\ \\text{joules}|. Replace |E_k| with |87.725| and isolate |v|.||\\begin{align} \\color{brown}{E_k} &amp;= 0.022v^2 \\\\ \\color{brown}{87.725} &amp;= 0.022v^2 \\\\ \\frac{87.725}{\\color{red}{0.022}} &amp;= \\frac{0.022v^2 }{\\color{red}{0.022}} \\\\ 3\\ 987.5 &amp;= v^2 \\\\ \\sqrt{3\\ 987.5} &amp;= \\sqrt{v^2} \\\\ 63.15\\ \\text{m/s} &amp;\\approx v \\end{align}||</p>\r\n\r\n<p>All that is left to do is convert the answer from m/s to km/h. ||\\begin{align} 63.15\\ \\frac{\\text{m}}{\\text{s}} \\times \\frac{3\\ 600\\ \\text{s}}{1\\ \\text{h}} &amp;= 227\\ 340\\ \\frac{\\text{m}}{\\text{h}} \\\\ &amp;= 227.34\\ \\frac{\\text{km}}{\\text{h}} \\end{align}||</p>\r\n\r\n<p><strong>Answer:</strong> The golf ball is moving at a speed of |227.34\\ \\text{km/h}.|<br/>\r\n<br/>\r\nThe problem is represented in the following Cartesian plane.</p>\r\n", "title": null, "totalColumns": null, "type": "text", "uuid": "ba7eab29-c862-44a2-952a-024a0982f239" }, { "column1": null, "column2": null, "column3": null, "description": "", "format": null, "hasDecoration": "false", "image": { "alt": "This graph shows the kinetic energy of a tennis ball and a golf ball as a function of their speed.", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=mI3CSRaV" }, "imageEnableZoom": false, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=vEgC53e8", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=RAXHqi0L", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=FaphQZic", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=mI3CSRaV", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=6Upf9zCG", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2021-08/AN_vitesse-energie-cinetique-%28im1130-1%29.jpg?itok=68vhfNbm", "style": "1920w" } ], "legend": null, "link": null, "slug": null, "source": "", "text": null, "title": "", "totalColumns": null, "type": "media", "uuid": "5674f9ce-b761-4dd3-ab88-6b9cb4d52208" }, { "column1": null, "column2": null, "column3": null, "description": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "slug": null, "source": null, "text": "<p>Only the first quadrant is represented because neither the speed nor the energy can be negative.</p>\r\n\r\n<p>Notice that the kinetic energy of the tennis ball increases more rapidly since its mass is greater, which means that the parameter |a| of the function is greater. This is why a golf ball must be moving with greater speed than a tennis ball to have the same kinetic energy, confirming our results.</p>\r\n", "title": null, "totalColumns": null, "type": "text", "uuid": "572d7427-532d-4a58-ad1b-58e561058d28" } ], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>The kinetic energy of an object, denoted |E_k,| is the energy that an object possesses due to its motion. The formula for calculating the kinetic energy of an object as a function of its speed is a second-degree polynomial function. ||\\begin{align} E_k = \\frac{1}{2}&amp;mv^2 \\\\\\\\ \\text{where} \\quad E_k &amp;: \\text{kinetic energy (J)}\\\\ m\\ &amp;: \\text{mass of the object (kg)} \\\\ v\\ \\ &amp;: \\text{speed of the object (m/s)}\\end{align}||</p>\r\n\r\n<p><strong>a)</strong> What is the kinetic energy of a tennis ball that weighs |58| grams and moves at a speed of |198\\ \\text{km/h}|?<br/>\r\n<br/>\r\n<strong>b)</strong> What is the speed in |\\text{km/h}| of a golf ball weighing |44| grams if it has the same kinetic energy as the tennis ball in question <strong>a)</strong>?</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "fb72888b-9950-43e1-b1f6-33e540b2cb5b", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "fd188fda-52b4-4927-ae45-b64336a59d3c", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": "examples-where-h-and-k-are-not-0", "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": "Examples Where |h| and |k| are Non-Zero", "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "b7024bc6-99b2-4a40-9b05-b1b47adb3612", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [ { "column1": null, "column2": null, "column3": null, "description": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "slug": null, "source": null, "text": "<p>It is very important to define the variables.<br/>\r\n<br/>\r\n|x|: number of months since the share was listed on the stock market<br/>\r\n|y|: share value in |$|</p>\r\n\r\n<p>The statement from the word problem confirms that the function passes through the point |(6,4)| which corresponds to the minimum value of the function.<br/>\r\n<br/>\r\n<strong>a)</strong><br/>\r\n<br/>\r\nThe problem says that the function passes through the point |(0,6).|<br/>\r\n<br/>\r\nTo answer the question, first determine the equation of the function. The minimum of the function is known, that is, its vertex |(h,k)=(6,4).| Additionally, a second point |(0,6)| is also known. Use the vertex form |y=a(x-h)^2+k| to determine the equation.</p>\r\n\r\n<p>Find the value of the parameter |a| by substituting in the known values in the equation. ||\\begin{align}y&amp;=a(x-h)^2+k \\\\6&amp;=a(0-6)^2+4\\\\6&amp;=a(-6)^2+4\\\\6&amp;=36a + 4\\\\2 &amp;= 36a\\\\ \\displaystyle \\frac{1}{18}&amp;=a \\end{align}|| So, the equation of the function is |y=\\displaystyle \\frac{1}{18}(x-6)^2+4.| To answer the question, simply replace |x| with |4| to find the value of |y.| ||\\begin{align}y&amp;=\\displaystyle \\frac{1}{18}(4-6)^2 + 4\\\\y&amp;= \\displaystyle \\frac{1}{18}(-2)^2+4\\\\y&amp;=\\displaystyle \\frac{1}{18} (4) + 4\\\\y&amp;= \\displaystyle \\frac{2}{9} + 4\\\\y&amp;=\\displaystyle \\frac{38}{9} \\approx 4.22\\end{align}|| <strong>Answer: </strong>Four months after being listed, the stock is valued at |\\$ 4.22| per share.</p>\r\n\r\n<hr/>\r\n<p><strong>b)</strong><br/>\r\n<br/>\r\nTo determine after how many months the stock is valued at |\\$ 5.00,| replace |y| with |5|, and then isolate |x.| ||5=\\displaystyle \\frac{1}{18}(x-6)^2+4||<br/>\r\n<br/>\r\nThe left side of the equation must be equal to 0. ||0=\\displaystyle \\frac{1}{18}(x-6)^2-1||<br/>\r\n<br/>\r\nThe formula |x_{1,2} = h \\pm \\displaystyle \\sqrt{-\\frac{k}{a}}| can be used to find the missing value.</p>\r\n\r\n<p>In this case, |a=\\dfrac{1}{18},h=6,| and |k=-1.| ||\\begin{align}x_{1,2} &amp;= \\displaystyle 6 \\pm \\sqrt{-\\frac{-1}{\\frac{1}{18}}}\\\\x_{1,2} &amp;= 6 \\pm \\sqrt{18}\\end{align}||<br/>\r\n<br/>\r\nThen, separate the formula into two parts. ||\\begin{align}x_1 &amp;= 6 + \\sqrt{18} \\approx 10.24\\\\x_2 &amp;= 6 - \\sqrt{18} \\approx 1.76 \\end{align}||<br/>\r\n<br/>\r\nSo, to answer the question, disregard the first value found and only keep the second value.<br/>\r\n<br/>\r\n<strong>Answer:</strong> The value of the share is |\\$ 5.00| a little over a month after being listed.</p>\r\n", "title": null, "totalColumns": null, "type": "text", "uuid": "c84997d7-3987-439e-a7c5-b87b34a9b4b1" } ], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>A stock listed on the stock exchange reaches a minimum value of |\\$&nbsp;4.00| six months after being listed on the stock exchange. The function that represents the decrease in the value of the stock during the first six months after being listed is a quadratic polynomial function.<br/>\r\n<br/>\r\n<strong>a)</strong> If the stock was valued at |\\$&nbsp;6.00| when it was first listed, what is its value four months later?<br/>\r\n<br/>\r\n<strong>b)</strong> At what point in the first six months did the stock reach a value of |\\$&nbsp;5.00|?</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "395ac172-4907-4a80-a9c9-5a1906e4475d", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "835b9e3b-9d79-43a1-b6f4-b6c880adfaa6", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>In the previous example, there were only equations and not inequalities. A final question using inequalities could be: \"During what time interval was the stock's value less than |\\$ 5.00|?\"</p>\r\n\r\n<p>To find out how to solve this kind of question, consult the following concept sheet: <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"ff32c663-e5d6-4291-aa9e-08ae96a16293\" href=\"/en/students/vl/mathematics/solving-a-second-degree-equation-or-inequality-m1397#solving-a-second-degree-polynomial\">Solving a Single-variable Second-degree Polynomial Inequality.</a></p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "8d0186f8-df15-40f0-98d2-a8afb3ee7d55", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [ { "column1": null, "column2": null, "column3": null, "description": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "slug": null, "source": null, "text": "<p>It is very important to define the variables.<br/>\r\n<br/>\r\n|x|: time of day (in hours)<br/>\r\n|y|: amount of water in the tank</p>\r\n\r\n<p>It is possible to find two points belonging to the function. These are the points |(12, 25\\ 000)| and |(20,\\ 0).|<br/>\r\n<br/>\r\nThe point |(12, 25\\ 000)| corresponds to the maximum value of the function.<br/>\r\n<br/>\r\n<strong>a)</strong><br/>\r\n<br/>\r\nTo <a href=\"#\">find the equation of the function</a> modeling this situation, use the vertex form of the quadratic function. The point |(12, 25\\ 000)| being the vertex, the vertex form is best for finding the equation.</p>\r\n\r\n<p>The vertex form of the quadratic function is |y=a(x-h)^2+k.| In this situation, |(h,k)=(12, 25\\ 000)| and |(x,y)=(20,0).| Then replace these parameters and variables in the equation. ||y=a(x-h)^2+k \\rightarrow 0=a(20-12)^2+25\\ 000||<br/>\r\nNow isolate the value of |a.| || \\begin{align}0&amp;=a(20-12)^2 + 25\\ 000 \\\\ 0&amp;= a(8)^2 + 25\\ 000 \\\\ 0&amp;= 64a + 25\\ 000 \\\\ -25\\ 000 &amp;= 64a \\\\ -390.625&amp;= a \\end{align}||<br/>\r\nSo, the equation of the function in vertex form is |y=-390.625(x-12)^2 + 25\\ 000.|<br/>\r\nAll that is left to do is to convert from the vertex form to the general form using algebraic manipulations. ||\\begin{align}y&amp;=-390.625(x-12)^2+25\\ 000 \\\\ y&amp;= -390.625(x-12)(x-12) +25\\ 000 \\\\ y&amp;= -390.625(x^2-24x+144) + 25\\ 000 \\\\ y&amp;= -390.625x^2 + 9\\ 375x - 56\\ 250 + 25\\ 000 \\\\ y&amp;= -390.625x^2 + 9\\ 375x - 31\\ 250 \\end{align}||<br/>\r\n<strong>Answer:</strong> The general form is therefore |y=-390.625x^2 + 9\\ 375x - 31\\ 250.|</p>\r\n\r\n<hr/>\r\n<p><br/>\r\n<strong>b)</strong><br/>\r\n<br/>\r\nTo determine at what times the tank contains |15\\ 000\\ \\text{L},| replace |y| with |15\\ 000| in the equation. ||15\\ 000=-390.625x^2+9\\ 375x-31\\ 250||<br/>\r\nTo <a data-entity-substitution=\"canonical\" data-entity-type=\"node\" data-entity-uuid=\"ff32c663-e5d6-4291-aa9e-08ae96a16293\" href=\"/en/students/vl/mathematics/solving-a-second-degree-equation-or-inequality-m1397\">solve</a> such an equation, make the left side equal to 0. ||\\begin{align} 15\\ 000 &amp;= -390.625x^2 + 9\\ 375x - 31\\ 250 \\\\ \\Rightarrow \\quad 0 &amp;=-390.625x^2 + 9\\ 375x-46\\ 250 \\end{align}||<br/>\r\nNow, in order to find the solutions of this equation, use the quadratic formula: |\\displaystyle x_{1,2} = \\frac{-b \\pm \\sqrt{b^2-4ac}}{2a}.|<br/>\r\nIn this case, |a=-390.625, b=9\\ 375,| and |c=-46\\ 250|. ||\\begin{align}\\displaystyle x_{1,2} &amp;= \\frac{-9\\ 375 \\pm \\sqrt{9\\ 375^2 - 4\\times -390.625 \\times -46\\ 250}}{2 \\times -390.625} \\\\ \\displaystyle x_{1,2} &amp;= \\frac{-9\\ 375 \\pm \\sqrt{15\\ 625\\ 000}}{-781.25}\\end{align}||<br/>\r\nThen, separate the formula into two parts. ||\\begin{align}\\displaystyle x_1 &amp;= \\frac{-9\\ 375 + \\sqrt{15\\ 625\\ 000}}{-781.25} \\approx 6.94\\\\ \\displaystyle x_2 &amp;= \\frac{-9\\ 375 - \\sqrt{15\\ 625\\ 000}}{-781.25} \\approx 17.06 \\end{align}||<br/>\r\nTo give the answer to the question, convert the two values |x_1| and |x_2| into hours and minutes.</p>\r\n\r\n<ul>\r\n\t<li>\r\n\t<p>|x_1| corresponds to |6| hours and |56| minutes. Essentially, |0.94 \\times 60 = 56.4| minutes, which can be rounded to |56| minutes.</p>\r\n\t</li>\r\n\t<li>\r\n\t<p>|x_2| corresponds to |17| hours and |4| minutes. Essentially, |0.06 \\times 60 = 3.6| minutes, which can be rounded to |4| minutes.</p>\r\n\t</li>\r\n</ul>\r\n\r\n<p><strong>Answer:</strong> The water level of the tank will be |15\\ 000\\ \\text{L}| at 6:56 a.m. and 5:04 p.m (17:04).</p>\r\n", "title": null, "totalColumns": null, "type": "text", "uuid": "08ec8feb-1e61-4338-970b-4d710e67b383" } ], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>The amount of water in the tank of a wastewater treatment plant varies depending on the time of day. This situation can be modeled using a quadratic polynomial function. The plant's tank is filled to its capacity of |25\\ 000\\ \\text{L}| at noon. It is empty at 8 p.m (20:00).<br/>\r\n<br/>\r\n<strong>a)</strong> What is the equation in standard form associated with the amount of water in the reservoir depending on the time of day?<br/>\r\n<br/>\r\n<strong>b)</strong> At what times is the factory tank filled with |15\\ 000\\ \\text{L}|?</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "efad1d9c-cca5-478f-9c32-f383d4b21e93", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "c7adca48-bd81-48a5-91c1-3d64b4ec0dbb", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": null, "title": null, "type": "moduleContent", "uuid": "02449aa0-596f-4906-be86-80d311b0a30e" } ], "slug": "solving-problems-involving-second-degree-polynomial-functions", "subtype": "", "tags": [], "title": "Solving Problems Involving Second-Degree Polynomial Functions ", "topic": "math", "type": "file", "uuid": "0039fbff-89f7-4156-84d3-c2da88296e27" } }
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{ "file": { "breadcrumbs": { "children": null, "current": { "routerLink": "/fr/eleves/bv/histoire/charles-darwin-1809-1882-d1023", "title": "Charles Darwin" }, "parents": null, "root": { "routerLink": "/en/students/vl/history", "title": "History" } }, "code": "d1023", "image": null, "imageStyles": [], "introduction": "", "lang": "fr", "levels": [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ], "metatags": [ { "attributes": { "content": null, "href": "https://cms.alloprof.qc.ca/en/node/32507", "name": null, "property": null, "rel": "canonical" }, "tag": "link" }, { "attributes": { "content": "Charles Darwin | Alloprof", "href": null, "name": "title", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Charles Darwin, né en 1809 et décédé en 1882, est un biologiste britannique reconnu pour sa publication L'origine des espèces.", "href": null, "name": "description", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Alloprof", "href": null, "name": null, "property": "og:site_name", "rel": null }, "tag": "meta" }, { "attributes": { "content": "article", "href": null, "name": null, "property": "og:type", "rel": null }, "tag": "meta" }, { "attributes": { "content": "https://cms.alloprof.qc.ca/node/32507", "href": null, "name": null, "property": "og:url", "rel": null }, "tag": "meta" }, { "attributes": { "content": "Charles Darwin", "href": null, "name": null, "property": "og:title", "rel": null }, "tag": "meta" } ], "navigation": [ { "anchor": "biographie-en-quelques-points", "level": "2", "text": "Biographie en quelques points", "type": null } ], "oppositeFile": null, "otherLangSlug": "charles-darwin-1809-1882", "otherLangUrl": "/fr/eleves/bv/histoire/charles-darwin-1809-1882-d1023", "parentCode": null, "parentUuid": null, "promoted": false, "published": true, "references": { "links": [ { "text": "​Wikipédia", "typeLink": "external", "url": "https://fr.wikipedia.org/wiki/Charles_Darwin" }, { "text": "Voyage sur le Beagle", "typeLink": "external", "url": "http://acces.ens-lyon.fr/santo/pedagogie/histoire/le-voyage-de-charles-darwin-sur-le-beagle-un-exemple-d2019expedition-scientifique-qui-a-marque-l2019histoire-des-sciences-1" }, { "text": "Résumé de L'Origine des Espèces", "typeLink": "external", "url": "http://www.pourlascience.fr/ewb_pages/a/article-l-origine-des-especes-22416.php" }, { "text": "Sélection naturelle", "typeLink": "external", "url": "http://lecerveau.mcgill.ca/flash/capsules/outil_bleu10.htm" } ], "texts": [] }, "removeAudioPlayback": false, "sections": [ { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<p>Charles Robert Darwin est un biologiste britannique. Il participe pendant 5 ans à une expédition sur le Beagle, bateau qui voyage à travers le monde. Ses découvertes l'amènent à publier <em>L'Origine des espèces</em>, oeuvre majeure dans laquelle il décrit sa théorie portant sur l'évolution des organismes vivants. Le processus derrière cette évolution est aujourd'hui mieux connu sous le nom de <em>sélection naturelle</em>.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "0c2bce1b-b412-44da-8484-9f5a661f6029", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": [ { "description": "", "finalSlug": null, "finalTitle": null, "hasDecoration": "false", "image": { "alt": "Charles Darwin en 1880", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2020-07/d1023i1.jpg?itok=yW-AkwAd" }, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2020-07/d1023i1.jpg?itok=sR5WCwJq", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2020-07/d1023i1.jpg?itok=alP5ZmWV", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2020-07/d1023i1.jpg?itok=RYQz87Ag", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2020-07/d1023i1.jpg?itok=yW-AkwAd", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2020-07/d1023i1.jpg?itok=WIiTSuX8", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2020-07/d1023i1.jpg?itok=loPoT2ds", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "https://fr.wikipedia.org/wiki/Charles_Darwin#/media/File:Charles_Darwin_1880.jpg", "text": null, "title": "Charles Darwin en 1880", "titleParagraph": null, "type": "media", "uuid": "1d361a10-b0be-4f95-ae0d-9b4ed8f13de7", "video": null } ], "column2": [ { "description": "", "finalSlug": null, "finalTitle": null, "hasDecoration": "false", "image": { "alt": "Voyage du Beagle", "url": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2020-07/d1023i2.png?itok=1wvp-QxA" }, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": [ { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/480w/public/2020-07/d1023i2.png?itok=ClbLdSQP", "style": "480w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/720w/public/2020-07/d1023i2.png?itok=sLf-4LN2", "style": "720w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1080w/public/2020-07/d1023i2.png?itok=vNftrJZz", "style": "1080w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1200w/public/2020-07/d1023i2.png?itok=1wvp-QxA", "style": "1200w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1440w/public/2020-07/d1023i2.png?itok=Wskz7Iik", "style": "1440w" }, { "link": "https://cms.alloprof.qc.ca/sites/default/files/styles/1920w/public/2020-07/d1023i2.png?itok=cR8mQ7eR", "style": "1920w" } ], "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": "https://fr.wikipedia.org/wiki/Charles_Darwin#/media/File:Voyage_of_the_Beagle-fr.svg", "text": null, "title": "Voyage du Beagle", "titleParagraph": null, "type": "media", "uuid": "807989ea-ea0e-461b-a585-b0976c2f4886", "video": null } ], "column3": [], "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": "50_50", "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": null, "title": null, "titleParagraph": null, "totalColumns": 2, "type": "multiColumn", "uuid": "eb286782-4cd3-499d-8957-72c507477acf", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": null, "title": null, "type": "moduleContent", "uuid": "872d6c93-3910-492e-9e80-a897bc7f8c94" }, { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<ul>\r\n\t<li>1809&nbsp;: Charles Robert Darwin naît en Angleterre, le 12 février.</li>\r\n\t<li>1831&nbsp;: Darwin débute sa grande expédition sur le <em>Beagle</em>. Le voyage durera 5 ans.</li>\r\n\t<li>1836&nbsp;: Darwin publie <em>Le Journal du Beagle</em>, ce qui le rendra célèbre au sein de la communauté scientifique.</li>\r\n\t<li>1859&nbsp;: On publie son ouvrage <em>L'Origine des espèces</em>, qui reçoit un accueil mitigé (scientifiques et religieux ne s'entendent pas sur la théorie de l'évolution).</li>\r\n\t<li>1871&nbsp;: On publie <a href=\"https://fr.wikipedia.org/wiki/La_Filiation_de_l%27homme_et_la_s%C3%A9lection_li%C3%A9e_au_sexe\" target=\"_blank\" rel=\"noopener noreferer\">La Filiation de l'homme et la sélection liée au sexe</a><em>.</em></li>\r\n\t<li>1872&nbsp;: On publie <a href=\"https://fr.wikipedia.org/wiki/L%27Expression_des_%C3%A9motions_chez_l%27homme_et_les_animaux\" target=\"_blank\" rel=\"noopener noreferer\">L'Expression des émotions chez l'homme et les animaux</a><em>&nbsp;.</em></li>\r\n\t<li>1882&nbsp;: Darwin meurt d'une grave maladie le 19 février.</li>\r\n</ul>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "73305f75-e3a4-4104-b733-c4812231bfed", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": "biographie-en-quelques-points", "title": "Biographie en quelques points", "type": "moduleContent", "uuid": "66901af0-88db-475a-8772-e5f37b1d32ed" } ], "slug": "charles-darwin-1809-1882", "subtype": "", "tags": [ "voyage", "charles", "robert", "théorie", "février", "scientifiques", "Charles Darwin", "qui est charles darwin", "charles darwin biographie" ], "title": "Charles Darwin", "topic": "history", "type": "file", "uuid": "004c15ef-5da0-4e4c-9e09-e8f851cb8cfb" } }
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{ "file": { "breadcrumbs": { "children": null, "current": { "routerLink": "/fr/eleves/bv/anglais/indefinite-articles-a-an-a0355", "title": "Indefinite Articles (a/an)" }, "parents": null, "root": { "routerLink": "/en/students/vl/english", "title": "English" } }, "code": "a0355", "image": null, "imageStyles": [], "introduction": "", "lang": "fr", "levels": [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ], "metatags": [ { "attributes": { "content": null, "href": "https://cms.alloprof.qc.ca/en/node/32898", "name": null, "property": null, "rel": "canonical" }, "tag": "link" }, { "attributes": { "content": "Indefinite Articles (a/an) | Alloprof", "href": null, "name": "title", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Indefinite articles (A/An)", "href": null, "name": "description", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Alloprof", "href": null, "name": null, "property": "og:site_name", "rel": null }, "tag": "meta" }, { "attributes": { "content": "article", "href": null, "name": null, "property": "og:type", "rel": null }, "tag": "meta" }, { "attributes": { "content": "https://cms.alloprof.qc.ca/node/32898", "href": null, "name": null, "property": "og:url", "rel": null }, "tag": "meta" }, { "attributes": { "content": "Indefinite Articles (a/an)", "href": null, "name": null, "property": "og:title", "rel": null }, "tag": "meta" } ], "navigation": [ { "anchor": "what-youll-see-here", "level": "2", "text": "What You'll See Here", "type": null } ], "oppositeFile": null, "otherLangSlug": "indefinite-articles-a-an", "otherLangUrl": "/fr/eleves/bv/anglais/indefinite-articles-a-an-a0355", "parentCode": null, "parentUuid": null, "promoted": false, "published": true, "references": { "links": [], "texts": [] }, "removeAudioPlayback": false, "sections": [ { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<div>​​​She is <strong>a </strong>student at this school.&nbsp;<br/>\r\nCan I have <strong>an</strong>&nbsp;orange and <strong>a</strong> banana?&nbsp;</div>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "6c73b70c-eaa8-4cdc-b4ae-2b9f42ed141f", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<div>​Indefinite articles accompany <em>singular countable nouns</em>. They do not refer to particular or precise things.&nbsp;</div>\r\n\r\n<div class=\"table-wrapper\"><table cellspacing=\"0\" class=\"ms-rteTable-2\" width=\"100%\">\r\n\t<tbody>\r\n\t\t<tr class=\"ms-rteTableEvenRow-2\" style=\"text-align:center;\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" colspan=\"5\" style=\"width:16.66%;\"><strong>​Uses of the indefinite articles <i>a</i>&nbsp;or <i>an</i></strong></td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableOddRow-2\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​With <em>singular&nbsp;countable nouns </em>when you<em> d​on't refer to a particular item</em><em> or person</em>.</td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\" colspan=\"3\"><strong>​​​</strong>I would like <strong>a</strong> blue pencil.&nbsp;<br/>\r\n\t\t\tShe took <strong>an</strong> envelope.</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" colspan=\"1\">​(any blue pencil)<br/>\r\n\t\t\t(any envelope)</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableEvenRow-2\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​​​When something or someone is<em> part of a group.</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\" colspan=\"3\">​He is&nbsp;<strong>a</strong>&nbsp;student at this school.&nbsp;​<br/>\r\n\t\t\t<br/>\r\n\t\t\tShe is <strong>an</strong> athlete at this university.</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" colspan=\"1\">​(He is&nbsp;in a bigger group of students)<br/>\r\n\t\t\t(She is&nbsp;in a bigger group&nbsp;of athletes)</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableOddRow-2\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​<strong>​</strong>To describe someone'​s <em>job.</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\" colspan=\"3\">She is&nbsp;<strong>a</strong><strong>n</strong>&nbsp;investigator.<br/>\r\n\t\t\tHe is <strong>a</strong> pilot.</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" colspan=\"1\">(Her job is to be an investigator.) (His job is to be a pilot.)​</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableEvenRow-2\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​​To say something about <em>all things.</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\" colspan=\"3\"><strong>A</strong> friend&nbsp;forgives.​<br/>\r\n\t\t\t<strong>An</strong> orange is sour.&nbsp;</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" colspan=\"1\">​(all friends forgive)<br/>\r\n\t\t\t(all oranges are sour)</td>\r\n\t\t</tr>\r\n\t</tbody>\r\n</table></div>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "47407e41-47e4-460a-833f-86ccc9397d45", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "068d43cb-92b5-4090-9d1d-d6da051e6a05", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": false, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": false, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<div>&nbsp;\r\n<div class=\"table-wrapper\"><table cellspacing=\"0\" class=\"ms-rteTable-2\" width=\"100%\">\r\n\t<tbody>\r\n\t\t<tr class=\"ms-rteTableEvenRow-2\" style=\"text-align:center;\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" colspan=\"2\"><strong>When to use 'a'​​ ​ ​</strong></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\" colspan=\"2\"><strong>​When to use 'an' ​ ​​</strong></td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableOddRow-2\" style=\"text-align:left;\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">With a&nbsp;singular&nbsp;noun that&nbsp;starts with a <em>consonant​</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\">\r\n\t\t\t<div>​​<strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">b</span>oy</div>\r\n\r\n\t\t\t<div><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">c</span>ar&nbsp;</div>\r\n\r\n\t\t\t<div><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">p</span>enguin</div>\r\n\t\t\t</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​With a singular noun that starts with a <em>vowel</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\">\r\n\t\t\t<div>​<strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">a</span>irport</div>\r\n\r\n\t\t\t<div><strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">e</span>lephant</div>\r\n\r\n\t\t\t<div><strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">a</span>mbulance</div>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableEvenRow-2\" style=\"text-align:left;\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​With a singular noun starting with a <em>pronounced 'h</em><em>'</em><em>​</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\">\r\n\t\t\t<div><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">h</span>orse​</div>\r\n\r\n\t\t\t<div><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">h</span>ouse</div>\r\n\r\n\t\t\t<div><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">h</span>orror movie</div>\r\n\t\t\t</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\">​With a singular&nbsp;noun starting with a <em>silent 'h'&nbsp;</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\">\r\n\t\t\t<div>​<strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">ho</span>ur</div>\r\n\r\n\t\t\t<div><strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">ho</span>nest person</div>\r\n\r\n\t\t\t<div><strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">heiress</span></div>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableOddRow-2\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" style=\"text-align:left;\">​With a singular noun&nbsp;starting with&nbsp;<em>'u' pronounced as 'you'</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\">\r\n\t\t\t<div style=\"text-align:left;\"><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">u</span>niversity</div>\r\n\r\n\t\t\t<div style=\"text-align:left;\"><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">u</span>niverse</div>\r\n\r\n\t\t\t<div style=\"text-align:left;\"><strong>a&nbsp;</strong><span style=\"text-decoration:underline;\">u</span>nicorn</div>\r\n\t\t\t</td>\r\n\t\t\t<td class=\"ms-rteTableEvenCol-2\" style=\"text-align:left;\">​W​ith a singular noun starting with<em>&nbsp;'u'</em>&nbsp;<em>pronounced as&nbsp;'uh'</em></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-2\">\r\n\t\t\t<div style=\"text-align:left;\">​<strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">u</span>mbrella</div>\r\n\r\n\t\t\t<div style=\"text-align:left;\"><strong>an&nbsp;</strong><span style=\"text-decoration:underline;\">u</span>ncle&nbsp;</div>\r\n\r\n\t\t\t<div style=\"text-align:left;\"><strong>an</strong>&nbsp;<span style=\"text-decoration:underline;\">u</span>nderwear</div>\r\n\t\t\t</td>\r\n\t\t</tr>\r\n\t</tbody>\r\n</table></div>\r\n</div>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "143aba2e-084a-40d0-a9b7-1ab8ccef8423", "video": null } ], "subtype": "regle", "surtitle": "Règle", "text": null, "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "8af99e66-8e28-4cb2-8820-f695ca563739", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": [ { "anchor": "", "level": 1, "text": "Definite Articles", "type": "linkTdm", "typeLink": "internal", "url": "/en/node/32899", "uuid": "8c0a7f11-f61c-4f65-9f5c-c92430a37bad" }, { "anchor": "", "level": 1, "text": "Countable and Uncountable Nouns", "type": "linkTdm", "typeLink": "internal", "url": "/en/node/32282", "uuid": "1eab961e-9bc7-426f-8c10-1407cbfbe0fd" }, { "anchor": "", "level": 1, "text": "Vowels and Consonants", "type": "linkTdm", "typeLink": "internal", "url": "/en/node/30297", "uuid": "0504408f-7bf5-4938-90ed-985ea492d0cc" } ], "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "tableOfContents", "uuid": "9ce455d3-d123-4ce2-bb57-a76ad250b87b", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": "what-youll-see-here", "title": "What You'll See Here", "type": "moduleContent", "uuid": "56389ec6-47e1-4dab-b7dc-ebb6d411a903" } ], "slug": "indefinite-articles-a-an", "subtype": "", "tags": [ "singular", "noun", "pronounced", "articles", "countable" ], "title": "Indefinite Articles (a/an)", "topic": "english", "type": "file", "uuid": "005bd727-bdf3-4fc7-a368-14515a5d2775" } }
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{ "file": { "breadcrumbs": { "children": null, "current": { "routerLink": "/fr/eleves/bv/francais/accident-incident-f1543", "title": "Accident ou incident" }, "parents": null, "root": { "routerLink": "/en/students/vl/french", "title": "French" } }, "code": "f1543", "image": null, "imageStyles": [], "introduction": "", "lang": "fr", "levels": [ 7, 8, 9, 10, 11 ], "metatags": [ { "attributes": { "content": null, "href": "https://cms.alloprof.qc.ca/en/node/32106", "name": null, "property": null, "rel": "canonical" }, "tag": "link" }, { "attributes": { "content": "Accident ou incident | Alloprof", "href": null, "name": "title", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Un accident est un évènement malheureux et imprévisible causant des dégâts. Un incident est un petit évènement qui survient de manière inattendue.", "href": null, "name": "description", "property": null, "rel": null }, "tag": "meta" }, { "attributes": { "content": "Alloprof", "href": null, "name": null, "property": "og:site_name", "rel": null }, "tag": "meta" }, { "attributes": { "content": "article", "href": null, "name": null, "property": "og:type", "rel": null }, "tag": "meta" }, { "attributes": { "content": "https://cms.alloprof.qc.ca/node/32106", "href": null, "name": null, "property": "og:url", "rel": null }, "tag": "meta" }, { "attributes": { "content": "Accident ou incident", "href": null, "name": null, "property": "og:title", "rel": null }, "tag": "meta" } ], "navigation": null, "oppositeFile": null, "otherLangSlug": "accident-incident", "otherLangUrl": "/fr/eleves/bv/francais/accident-incident-f1543", "parentCode": null, "parentUuid": null, "promoted": false, "published": true, "references": { "links": [ { "text": "La paronymie : définition et exemples", "typeLink": "external", "url": "http://monsu.desiderio.free.fr/atelier/paronymes.html" } ], "texts": [] }, "removeAudioPlayback": false, "sections": [ { "modules": [ { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\">\n<html><body><ol>\r\n\t<li><span><strong>​​</strong><strong>Accident </strong>: <a href=\"/fr/eleves/bv/francais/le-nom-f1179\">nom </a>masculin qui signifie <em>évènement malheureux qui cause des dégâts, des blessures</em> ou<em> évènement imprévisible, désagréable</em>. (nom masculin)</span></li>\r\n\t<li><span><strong>Incident</strong> : <a href=\"/fr/eleves/bv/francais/le-nom-f1179\">nom ​</a>masculin qui signifie <em>petit évènement qui survient de manière inattendue et qui est secondaire à l'action principale</em>. (nom masculin)</span></li>\r\n</ol>\r\n</body></html>\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "d5a75002-d94c-4680-84b6-653aa1c84328", "video": null } ], "subtype": "definition", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "63b7bb29-abc1-4565-807a-720f483955be", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<ol>\r\n\t<li><strong>1.</strong>&nbsp;Un&nbsp;<strong>accident&nbsp;</strong>de voiture.</li>\r\n\t<li>Oups! Un petit&nbsp;<strong>accident&nbsp;</strong>: l'assiette est tombée.&nbsp;</li>\r\n\t<li>Le spectacle a été retardé, mais cela n'a été&nbsp;qu’un petit&nbsp;<strong>incident&nbsp;</strong>dans cette magnifique soirée.</li>\r\n</ol>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "0e84d5ed-db47-4241-a4ce-a2caf6f4edfb", "video": null } ], "subtype": "exemple", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "b5f4bba7-3994-4617-a6fc-ada8576b1368", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": null, "source": null, "submodules": null, "subtype": null, "surtitle": null, "text": "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\">\n<html><body><p>Il existe quelques <a href=\"/fr/eleves/bv/francais/la-locution-f1233\">locutions</a> formées avec le nom <strong><em>accident</em></strong>:</p>\r\n\r\n<div>\r\n<div class=\"table-wrapper\"><table cellspacing=\"0\" class=\"ms-rteTable-default\" width=\"100%\">\r\n\t<tbody>\r\n\t\t<tr class=\"ms-rteTableEvenRow-default\" style=\"text-align:center;\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-default\"><strong>​Locutions</strong></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-default\"><strong>​Sens</strong></td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableOddRow-default\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-default\">​<strong>Accident</strong> de parcours</td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-default\">évènement fâcheux qui ralentit le processus</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableEvenRow-default\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-default\"><strong>​Accident</strong> de terrain</td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-default\">​Inégalité au sol</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableOddRow-default\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-default\">​<strong>Accident</strong> vasculaire cérébral</td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-default\">​Hémorragie ou infarctus d'une région du cerveau</td>\r\n\t\t</tr>\r\n\t\t<tr class=\"ms-rteTableEvenRow-default\">\r\n\t\t\t<td class=\"ms-rteTableEvenCol-default\">​Par <strong>accident</strong></td>\r\n\t\t\t<td class=\"ms-rteTableOddCol-default\">​Par hasard</td>\r\n\t\t</tr>\r\n\t</tbody>\r\n</table></div>\r\n</div>\r\n</body></html>\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "7f4c6130-1358-408c-99e5-98db63d96b8d", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null }, { "audio": null, "column1": null, "column2": null, "column3": null, "content": null, "description": null, "displayLogo": null, "exercises": null, "finalSlug": null, "finalTitle": null, "format": null, "frameUrl": null, "hasDecoration": null, "height": null, "hideImportantTitle": null, "horizontalScrollbar": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "isSlider": null, "items": null, "legend": null, "link": null, "links": null, "pluralizeTitle": null, "slug": null, "slugParagraph": null, "solution": [], "source": null, "submodules": [ { "column1": null, "column2": null, "column3": null, "description": null, "finalSlug": null, "finalTitle": null, "format": null, "hasDecoration": null, "image": null, "imageEnableZoom": null, "imageMaxWidth": null, "imageStyles": null, "legend": null, "link": null, "links": null, "slug": null, "slugParagraph": null, "source": null, "text": "<p>Il existe d'autres <a href=\"/BV/Pages/f1346.aspx\">paronymes</a>.</p>\r\n", "title": null, "titleParagraph": null, "totalColumns": null, "type": "text", "uuid": "b0c39be8-8005-4bdb-b27f-81187b537f86", "video": null } ], "subtype": "ensavoirplus", "surtitle": "", "text": "", "title": null, "titleParagraph": null, "totalColumns": null, "type": "blocSpecial", "uuid": "d9c91849-0c95-4eb4-99b3-b6b1f14376fb", "verticalScrollbar": null, "video": null, "vocabularies": null, "width": null } ], "slug": null, "title": null, "type": "moduleContent", "uuid": "ef8732c8-f144-49e0-81ce-5fcdef4f2572" } ], "slug": "accident-incident", "subtype": "", "tags": [ "accident", "événement", "masculin", "petit", "incident", "locutions", "paronyme" ], "title": "Accident ou incident", "topic": "french", "type": "file", "uuid": "005eb62e-a84c-469e-b07f-58f19ae48955" } }
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{"file":{"breadcrumbs":{"children":null,"current":{"routerLink":"/fr/eleves/bv/mathematiques/les-sys(...TRUNCATED)
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{"file":{"breadcrumbs":{"children":null,"current":{"routerLink":"/fr/eleves/bv/francais/les-fonction(...TRUNCATED)
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{"file":{"breadcrumbs":{"children":null,"current":{"routerLink":"/en/students/vl/mathematics/role-pa(...TRUNCATED)
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{"file":{"breadcrumbs":{"children":null,"current":{"routerLink":"/fr/eleves/bv/francais/la-vitesse-d(...TRUNCATED)
End of preview.

Alloprof dataset

This is the dataset refered to in our paper:

Alloprof: a new French question-answer education dataset and its use in an information retrieval case study (https://arxiv.org/abs/2302.07738)

This dataset was provided by AlloProf, an organisation in Quebec, Canada offering resources and a help forum curated by a large number of teachers to students on all subjects taught from in primary and secondary school.

Raw data on questions is available in the following files:

  • data/questions/categories.json: subjects and their corresponding id
  • data/questions/comments.json: explanation (answer) data
  • data/questions/discussions.json: question data
  • data/questions/grades.json: grades and their corresponding id
  • data/questions/roles.json: information about the user type for each user id

Raw data on reference pages is available in the following files:

  • data/pages/page-content-en.json: data for the reference pages in English
  • data/pages/page-content-fr.json: data for the reference pages in French

The data can be parsed and structured using the script scripts/parse_data.py to create the file data/alloprof.csv with the following columns:

  • id (str) : Id of the document
  • url (str) : URL of the document
  • text (str) : Parsed text of the document
  • language (str) : Either "fr" or "en", the language of the document
  • user (int) : Id corresponding to the user who asked the question
  • images (str) : ";" separated list of URLs of images contained in the document
  • relevant (str) : ";" separated list of document ids appearing as links in the explanation to that document. For files, this will always be empty as there are no corresponding explanation
  • is_query (bool) : If this document is a question
  • subject (str) : ";" separated list of school subjects the document is related to
  • grade (str) : ";" separated list of school grade levels the document is related to
  • possible (str) : ";" separated list of possible documents ids this document may refer to. This list corresponds to every document of the same subject and grade. For files, this will always be empty to speed up reading and writing

The possible column depends on arguments passed to the scripts to add related subjects, and lower and higher grade levels to the possible documents (see paper). Also note that the provided alloprof.csv file is stored with git lfs and can be pulled with git lfs install && git lfs pull.

For images, a script to download them is available as scripts/download_images.py.

If you have any questions, don't hesitate to mail us at antoine.lefebvre-brossard@mila.quebec.

Please cite our work as:

@misc{lef23,
  doi = {10.48550/ARXIV.2302.07738},
  url = {https://arxiv.org/abs/2302.07738},
  author = {Lefebvre-Brossard, Antoine and Gazaille, Stephane and Desmarais, Michel C.},
  keywords = {Computation and Language (cs.CL), Information Retrieval (cs.IR), Machine Learning (cs.LG), FOS: Computer and information sciences, FOS: Computer and information sciences},
  title = {Alloprof: a new French question-answer education dataset and its use in an information retrieval case study},
  publisher = {arXiv},
  year = {2023},
  copyright = {Creative Commons Attribution Non Commercial Share Alike 4.0 International}
}
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