Resolução XIII OBA - prova do Nível 3
Autor: Fisica | Publicado: 2011-08-08T05:10:00-07:00


As perguntas :&nbsp;http://www.oba.org.br/sisglob/sisglob_arquivos/provas_gabaritos/2010/Prova_nivel_3_da_XIII_

01- &nbsp; a- O dobro de 25 é 50,então o aumento máximo do Galileoscópio é de 50 vezes.&nbsp; b- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;Lua →&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Plêiades →&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Júpiter


02-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 




Letras A e B respondidas pela imagem ; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;









03-
(1) Sol&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1) Área central do campo de futebol(2) Lua&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (5)&nbsp; Júpiter(3) Júpiter&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) Vaca(4) Nossa galáxia&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;(4) Órbita da Terra(5) Aglomerado das Plêiades&nbsp; &nbsp; &nbsp;(2) Bola de tênis
04-&nbsp; a- resposta na figura&nbsp; b- As janelas que estão nos sentidos Leste e Oeste iram receber luz direta do Sol,a janela no sentido Sul&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; receberá&nbsp; luz direta do Sol, nos Equinócio de Primavera, Solstício de Verão ao Equinócio de Outono.&nbsp;c- Boa Vista está localizada próximo a linha do equador,assim o Sol vai estar ao Sul e Norte desta casa,e entrará luz nas duas janelas,Norte e Sul.

















05-&nbsp; a- não. Porque na órbita ao redor da Terra não tem atmosfera&nbsp; b- Não. Porque na Lua não tem atmosfera.&nbsp; c- Sim. Porque em Marte tem atmosfera.
06- &nbsp; a- Sendo apogeu o ponto Maximo de altura,analisando a imagem a resposta é 158 km.&nbsp; b- O alcance seria de 94 km.&nbsp; c- Tirando a diferença&nbsp; entre os dois tempos; 310 – 85 = 225 segundos
07- &nbsp; a- Somando os dados temos; 422+ 371+56+39 = 888 satélites no total.&nbsp;&nbsp;b- Desde 1957 → 5.000 satélites em órbita&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Em funcionamento → 888 operacionais&nbsp;&nbsp;&nbsp;&nbsp; Diminuindo os itens → 5.000 – 888 = 4.112&nbsp; satélites que virou lixo espacial.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 08- 



   (1)   Imagens com resolução espacial de1m   &nbsp;(2)    Mapear áreas desmatadas ( Considerando a área mínina   &nbsp;Mapeada de   900 m²,isto é,30x30)  
   &nbsp;(2)   Imagens com resolução espacial de30 m   &nbsp;(1)   Identificar aviões em pista de aeroporto  
   
(3)    Imagens com resolução espacial de 1.000 m   
(3)    Acompanhar deslocamento de frentes frias  










09- Economia de energia, produtos, mas eficientes,preservação do meio ambiente e etc. 
10- &nbsp; a-&nbsp; Trocando as lâmpadas incandescentes,por lâmpadas fluorescente.&nbsp; b- ¼ de 100 W = 25 Wentão troca-se a incandescente de 100 W por uma lâmpada de 25 W fluorescente.