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प्रश्न
Is there any possibility of making a special device to measure the magnitude of friction directly?
उत्तर
Yes. Tribometer is a special device to measure the magnitude of friction directly.
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संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
Write true or false.
The sliding friction is more than the rolling friction.
Fill in the blank.
We use ball bearings to .................. the friction.
When you apply brakes, the bicycle stops and the rim of the wheel becomes hot? Explain the reason.
Define sliding friction
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
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 |
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
Friction depends on the ______ of two surfaces in contact.
