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प्रश्न
What is the cause of friction?
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उत्तर
The cause of friction is the interlocking of the irregular projections on the two surfaces in contact.
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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?
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Give an example to illustrate the existence of the force of friction.
Answer the following in short.
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Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Fill in the blank.
Rolling friction is ........... than sliding friction.
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
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Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
