Question

Explain decreasing friction by giving 3 examples​

Answer 1

To decrease friction:

(i) Friction between two surfaces can be decreased by using lubricants.

(ii) Friction between two surfaces can be reduced by polishing them. The interlocking and projections are minimized by this method.

(iii) The friction due to air is reduced by making the automobiles streamline.

Answer 2

Answer:

(i) Friction between two surfaces can be decreased by using lubricants.

(ii) Friction between two surfaces can be reduced by polishing them. The interlocking and projections are minimized by this method.

(iii) The friction due to air is reduced by making the automobiles streamline