Advertisements
Advertisements
प्रश्न
Name the three kinds of friction.
Advertisements
उत्तर
Friction is of three kinds:
- Static friction
- Sliding friction,
- Rolling friction
APPEARS IN
संबंधित प्रश्न
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
Define rolling friction
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
Answer the following in a word or two or in a sentence.
Why does a rolling ball stop after moving some distance?
Answer the following in short.
Define force. Write its SI unit.
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
Fill in the blank.
Rolling friction is ........... than sliding friction.
Why is a ball bearing used in a cycle hub?
Is there any possibility of making a special device to measure the magnitude of friction directly?
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.
