WorksheetsFriction
Total questions: 10
Worksheet time: 6mins
Which one of these produces least friction?
Rolling friction
Sliding friction
Static friction
None of these
Friction always (a) the motion.
Friction can be reduced by using...
Oil
Grease
Powder
All of these
Which of the following is not a smooth surface?
Surface of tyre
Surface of mirror
Surface of wet floor
Surface of tiles
On which surface will a toy car go faster?
Muddy surface
Polished marble surface
Brick surface
Cemented surface
Why do we apply oil on door hinges?
To increase friction
To decrease friction
None of these
Friction depends on...
Roughness of a surface
Size
Weight
All of these
Smooth surface has..
More friction
Less friction
None of these
Bodies of birds, fishes and ships are (a)
Friction is a...
non-contact force
contact force
magnetic force
electrostatic force
