Use of Frictional Force in Daily Life

Friction is both enemy and friend in our daily life. Explain.

Why does friction damage the machines?

A streamlined body reduces weight.

Explain some disadvantages of friction.

Does friction oppose motion of an object?

Does friction cause wear and tear in machines?

Does friction produces heat?

Are there any disadvantages for friction? If yes, list few disadvantages of friction.

Polishing of a surface reduces friction.

When friction occurs temperature of the surrounding increases.

Why is friction necessary?

Friction is not necessary for running.

What would happen if friction did not act between your shoe and the floor?

Why is friction a necessary evil ?

What is the biggest disadvantage of friction?

Which of the following is used to increase the friction.

Friction causes different problems to people. Still why is it very important in many cases? Is friction a necessity or an evil? Explain. Also explain methods to reduce friction.

Why is friction called as a necessary evil? Explain different methods to reduce friction.

Wear and tear of tyres of vehicles happens not due to friction.

List any 3 advantages of friction.