Question

State three disadvantages of friction.

Answer 1

Answer:

DISADVANTAGE OF FRICTION.

◆friction produces a lot of heat in various parts of the machinery and this lead to wastage of energy as heat

◆opposes motion hence more energy is needed to overcome motion

◆noise production in machines is irrigating as well as leads to energy loss

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 .