Question

Write any 3 disadvantages of force of friction​

Answer 1

Answer:

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.

Answer 2

Answer:

Disadvantages of friction:

1.Friction produces a lot of heat in various parts of the machinery and this leads to wastage of energy as heat.

2.Opposes motion, hence more energy is needed to overcome friction.

3.Noise production in machines is irritating as well as leads to energy loss.