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प्रश्न
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
पर्याय
increase
decrease
remain the same
none of these
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उत्तर
decrease
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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.
Write true or false.
The sliding friction is more than the rolling friction.
When you apply brakes, the bicycle stops and the rim of the wheel becomes hot? Explain the reason.
Answer the following in detail.
What are the various effects of force? State one example of each.
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
Tick the most appropriate answer.
Friction produces
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
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.
