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प्रश्न
Fill in the blank.
Rolling friction is ........... than sliding friction.
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उत्तर
Rolling friction is less than sliding friction.
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संबंधित प्रश्न
Define static friction
Answer the following in short.
Define force. Write its SI unit.
Answer the following in detail.
What are the various effects of force? State one example of each.
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
State if the following statement is true or false. Correct the statement if it is false.
Friction has no relation with our walking or running.
State if the following statement is true or false. Correct the statement if it is false.
Friction helps us to grip the objects in our hand.
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Friction depends on the ______ of two surfaces in contact.
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.
Assertion: We can live very happily if friction is not present in nature.
Reason: The airplane shape is streamlined to reduce the effort of frictional force.
