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प्रश्न
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
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उत्तर
Smoother the surface, lesser is the frictional force offered by it.
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संबंधित प्रश्न
Friction depends on the ______ of surfaces.
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
Answer the following in detail.
What are the various effects of force? State one example of each.
Tick the most appropriate answer.
Friction is offered by
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.
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
Is there any possibility of making a special device to measure the magnitude of friction directly?
Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
