Question

What are the advantages and disadvantages of friction?

Answer 1

Some of the advantages of friction are:

• It helps us to walk, drive and write.
• It prevents screws and nails from slipping out of wood or metal surface.
• Helps in keeping things in place, such as a tied knot or bed sheet remains on the bed.
• It enables sitting on a chair without sliding down.

Some disadvantages of friction are:

• It causes heating up of moving parts in machinery and automobiles, which causes wastage of energy and fuel.
• It causes wear and tear of the moving parts.