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प्रश्न
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.
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उत्तर
Frictional force (friction)
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संबंधित प्रश्न
Name the two kinds of forces in nature.
List three ways of reducing friction.
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.................... is the SI unit of force.
Answer the following in a word or two or in a sentence.
Which type of force acts on a string pulled from both ends?
Tick the most appropriate answer.
Friction for an object can be reduced by
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Bicycles use ...................... to reduce friction between the pedals and the crank
Answer the following in a word or two or in a sentence.
Why is difficult for a pen to leave a mark on a highly smooth plastic sheet?
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: 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.
