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प्रश्न
A moving body comes to rest due to friction alone.
विकल्प
True
False
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उत्तर
A moving body comes to rest due to friction alone- True.
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संबंधित प्रश्न
State two factors which directly affect the force of friction.
List three ways of reducing friction.
Answer the following in short.
Define force. Write its SI unit.
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
The force of friction acting between two bodies in contact while at rest is known as ................ friction.
Answer the following in detail.
Define friction and explain how it is useful to us.
Match the following.
| Column I | Column II | |
| a) | Static friction | Viscosity |
| b) | Kinetic friction | Least friction |
| c) | Rolling friction | Objects are in motion |
| d) | Friction between the liquid layers | Objects are sliding |
| e) | Sliding friction | Objects are at rest |
Is there any possibility of making a special device to measure the magnitude of friction directly?
In the following figure, a boy is shown pushing the box from right to left. The force of friction will act on the box
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.
