Question

a) Give one use of heat produced by friction,
(b) Why is heat produced by friction dangerous in some cases?​

Answer 1

Answer:

A) The heat produced by friction is used as a principle for flint and steel fire starters.

B) The heat is also dangerous sometimes as wear and tear of footwears happens due to it.

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Answer 2

Answer:

Hello mate

A. Friction causes the molecules on rubbing surfaces to move faster so that they have more energy. This gives them high temperature and they feel warmer. Friction heat is useful.

B. 1. More energy will be required to move the body

2. Parts of machine might lose their slope.

3. Machine might stop working properly.

Hope it might be helpful

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