Question

Advantages and disadvantages of friction

Answer 1

Advantages

1. It is only because of friction that we walk, run etc.
2. Writing is only possible because there is friction between the pen and the paper.
Disadvantages
1. It produces heat in machines and due to overheating, some machines get spoiled.
2. It opposes motion.

Answer 2

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Advantages of friction:-

It is because of friction that we can walk, drive, open doors, turn tap and write.Screw and nails do not slip of because of the friction between the wood and the metal surface of the screw .

Disadvantages of friction:-

Friction causes the moving parts in machinery and automobiles to heat up this results in wastage of energy and fuel. Fiction also causes wear and Tear of the moving parts .