Friction : A Necessary Evil

“Friction is a necessary evil”- explain.

Will you give your unused shoes to underprivileged children who are needy of basic necessities of life? Justify.

What is the importance of frictional force in our daily life?

Which of the following can not be charged easily by friction?

A large amount of fuel is wasted while running machines to _____.

Friction is not necessary.

Friction – a necessary evil. Explain.

How is friction desirable sometimes?

Write advantages and disadvantages of friction.

Describe some examples where heat is produced due to friction.

How is friction sometimes desirable?

Friction – a necessary evil. Write two examples in support of this statement.

Write some usefulness of friction.