Question

mention three disadvantage of friction

Answer 1

The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy. 2. Due to friction we have to exert more power in machines.

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 .