Question

Disadvantages of Friction..!!

Answer 1

Disadvantages of friction:

1. Friction produces heat which damages the moving parts of a machine.
2. Friction produces wear and tear on the contacting surfaces. This reduces the life of machine parts, tyres and shoe soles.
3. A lot of energy is wasted due to friction to overcome it before moving.

Answer 2

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Disadvantages of friction:

• Friction produces a lot of heat in various parts of the machinery and this leads to wastage of energy as heat.
• Opposes motion, hence more energy is needed to overcome friction.
• Noise production in machines is irritating as well as leads to energy loss.
• Forest fires are caused due to friction between branches of trees.

hope it helps!