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प्रश्न
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
उत्तर
Smoother the surface, lesser is the frictional force offered by it.
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संबंधित प्रश्न
Give examples to show that friction is both a friend and a foe.
A charged glass rod attracts a charged plastic straw.
State two factors which directly affect the force of friction.
The eraser gets smaller and smaller as you use it more and more. Explain the reason.
Fill in the blank.
More the roughness of a surface, greater is the ........................
Tick the most appropriate answer.
Friction is offered by
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
Explain how friction can be minimized.
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
