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प्रश्न
Answer the following.
What do you understand by a force?
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उत्तर
Force is a push or pulls acting upon an object as a result of its interaction with another object.
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संबंधित प्रश्न
Give an example to illustrate the existence of the force of friction.
Fill in the blank.
.................... is the SI unit of force.
Tick the most appropriate answer.
Friction is offered by
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
Answer the following in short.
List the various states of matter that offer frictional force?
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
A moving body comes to rest due to friction alone.
Complete the analogy.
Knot in a thread : _____ friction : : Ball bearing : _____ friction
Why is a ball bearing used in a cycle hub?
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.
