Give examples to show that friction is both a friend and a foe.
ScienceClass 8CBSEAnswered 27 Mar 2026
Answer
Soln:
Advantages of friction
- a) Due to friction, we are able to walk.
- b) We are able to write because of the friction between the tip of the pen and the paper.
Disadvantages of friction
- a) Because of friction, the tires and soles of shoes wear out.
- b) Friction produces heat between different parts of the machines. This can damage the machines.
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