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प्रश्न
Tick the most appropriate answer
Friction always
विकल्प
supports motion
starts motion
encourages motion
opposes motion
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उत्तर
opposes motion
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संबंधित प्रश्न
Give examples to show that friction is both a friend and a foe.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
Tick the most appropriate answer.
Friction is offered by
Fill in the blank.
Rolling friction is ........... than sliding friction.
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
Answer the following in detail.
Write the characteristics of the force of friction?
Why is a ball bearing used in a cycle hub?
Assertion: We can live very happily if friction is not present in nature.
Reason: The airplane shape is streamlined to reduce the effort of frictional force.
Complete the analogy.
Knot in a thread : ______ friction :: Ball bearing : ______ friction.
