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प्रश्न
Fill in the blank.
Friction is a type of .................
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उत्तर
Friction is a type of contact force.
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संबंधित प्रश्न
Give an example to illustrate the existence of the force of friction.
List three ways of reducing friction.
Answer the following in short.
Define force. Write its SI unit.
Fill in the blank.
More the roughness of a surface, greater is the ........................
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
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?
A moving body comes to rest due to friction alone.
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.
Complete the analogy.
Knot in a thread : ______ friction :: Ball bearing : ______ friction.
