Question

Why is friction disadvantages at sometimes list at list for advantages and disadvantages of friction

Answer 1

Advantages of friction are
(i) With the help of friction we are able to walk.
(ii) With the help of friction we are able to write.
(iii) With the help of friction we are able to burn matchstick.

Disadvantages of friction
(i) It produces heat.
(ii) More energy is be required to overcome the force of friction.
(iii) It produces sparks.

Hope this helps you. Thank you.

Answer 2

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Advantages of friction:-

It is because of friction that we can walk, drive, open doors, turn tap and write.Screw and nails do not slip of because of the friction between the wood and the metal surface of the screw .

Disadvantages of friction:-

Friction causes the moving parts in machinery and automobiles to heat up this results in wastage of energy and fuel. Fiction also causes wear and Tear of the moving parts .