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प्रश्न
Tick the most appropriate answer.
Friction for an object can be reduced by
विकल्प
providing wheels
lubricating
streamlining
all of these
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उत्तर
all of these
APPEARS IN
संबंधित प्रश्न
Define static friction
Answer the following in short.
What do you understand by normal force?
Answer the following in detail.
What are the various effects of force? State one example of each.
Fill in the blank.
Sliding friction and rolling friction are types of .................. friction.
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.
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
Fill in the blank.
Bicycles use ...................... to reduce friction between the pedals and the crank
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
