Question

What are advantages and disadvantages of friction?​

Answer 1

Answer:

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.

Answer 2

Advantages of friction:

1.we are able to walk because of friction

2.friction between the tip of the pen and paper allows us to write

Disadvantages of friction:

1.tyres and soles of shoes wear out because of friction

2.friction between the different parts of machines produce heat.This can damage the machines.