Assertion: friction | /r/HasProperty | proportional
Facets:
value: to weight
type: OTHER
value: to the normal force
type: OTHER
value: to the force
type: TRANSITIVE-OBJECT
value: to the load
type: TRANSITIVE-OBJECT
value: directly
type: MANNER
value: according to the first
type: OTHER
value: in all cases
type: OTHER
value: to the velocity
type: OTHER
value: to the weight of the object
type: OTHER
value: to this area
type: LOCATION
value: for motion through air
type: PURPOSE
Source sentences:
text: Second, friction is proportional to the load or weight that presses the surfaces together.
text: In the standard model of friction, we consider friction to be proportional to the normal force.
text: Friction is proportional to the force acting on the contacting surfaces.
text: For motion through air, friction at slow speeds is proportional to the velocity.
text: We have noted that friction is proportional to the normal force, but not to the area in contact, a somewhat counterintuitive notion.
text: When a greater normal force is exerted, the actual contact area increases, and it is found that the friction is proportional to this area.
text: According to the first of these, friction is proportional to the weight of the object.
text: As stated earlier, friction is proportional to weight, which suggests that another factor is involved.
text: The earlier statement that friction is proportional to weight, in fact, applies only in the realm of classical physics.
text: When an object is moving, the friction is proportional and perpendicular to the normal force (N)
text: While exceptions such as this are easily found, the assumption that friction is proportional to the normal force is still reasonably valid in many cases and forms a useful model for many circumstances.
text: In all cases, the friction acting on a object or the force opposing the motion of the object is directly proportional to the force the object is pressing against the surface.
text: Second, friction is proportional to the load or weight that presses the surfaces together.