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प्रश्न
Tick the most appropriate answer.
If you pour some oil onto a floor, the friction would
विकल्प
increase
decrease
remain the same
none of these
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उत्तर
decrease
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संबंधित प्रश्न
Write true or false.
The sliding friction is more than the rolling friction.
Select the correct alternative.
Friction is reduced by
List three ways of reducing friction.
Define static friction
Define sliding friction
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
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.
How can sliding friction be changed into rolling friction easily?
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
