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प्रश्न
Fill in the blank.
.................... is the SI unit of force.
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उत्तर
Newton is the SI unit of force.
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संबंधित प्रश्न
When a glass rod is rubbed with a piece of silk cloth the rod ______.
What is the cause of friction?
Answer the following in detail.
What are the various effects of force? State one example of each.
Tick the most appropriate answer
Friction always
Fill in the blank
Rolling friction is ............. than sliding friction.
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
Answer the following in short.
When you push something heavy, the resistance you feel decreases as soon as the object starts moving. Explain the reason.
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?
