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प्रश्न
Fill in the blank.
We use ball bearings to .................. the friction.
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उत्तर
We use ball bearings to reduce the friction.
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संबंधित प्रश्न
What is the cause of friction?
Give three examples to illustrate that friction is a necessary evil.
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
Fill in the blank.
More the roughness of a surface, greater is the ........................
Fill in the blank.
Rolling friction offers ............. resistance than sliding friction.
Tick the most appropriate answer.
Friction for an object can be reduced by
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
A moving body comes to rest due to friction alone.
In the following figure, a boy is shown pushing the box from right to left. The force of friction will act on the box
We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other. Give reason.
