Assertion: friction | /r/HasProperty | caused
Facets:
value: by flowing past a moving object
type: MANNER
value: by moving over another
type: MANNER
Source sentences:
text: When you walk, friction is caused between the tread on shoes and the ground.
text: Friction is caused by one surface moving over another.
text: Friction can also be caused by air or water flowing past a moving object.
text: Friction is caused due to attractive forces between the molecules near the surfaces of the objects.