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प्रश्न
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
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उत्तर
Oiling or lubricating.
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संबंधित प्रश्न
State two factors which directly affect the force of friction.
List three ways of reducing friction.
Give three examples to illustrate that friction is a necessary evil.
Tick the most appropriate answer.
Friction for an object can be reduced by
Fill in the blank
Rolling friction is ............. than sliding friction.
Answer the following in a word or two or in a sentence.
Name the force responsible for opposing the motion between two bodies in contact.
Answer the following in detail.
Write the characteristics of the force of friction?
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
Friction depends on the ______ of two surfaces in contact.
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
