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प्रश्न
Tick the most appropriate answer
Friction always
पर्याय
supports motion
starts motion
encourages motion
opposes motion
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उत्तर
opposes motion
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संबंधित प्रश्न
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.
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
List three ways of reducing friction.
Define static friction
Fill in the blank
Rolling friction is ............. than sliding friction.
Fill in the blank.
Friction depends upon the ............... of an object.
Answer the following in a word or two or in a sentence.
Name the force responsible for opposing the motion between two bodies in contact.
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
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?
