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प्रश्न
When you apply brakes, the bicycle stops and the rim of the wheel becomes hot? Explain the reason.
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उत्तर
It is due to friction between the brakes and the rim of the wheel that it becomes hot.
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संबंधित प्रश्न
Friction depends on the ______ of surfaces.
Give examples to show that friction is both a friend and a foe.
Name the two kinds of forces in nature.
Fill in the blank.
.................... is the SI unit of force.
State if the following statement is true or false. Correct the statement if it is false.
Like charges always attract each other.
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
Rolling friction is ........... than sliding friction.
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
