Question

Disadvantage s of friction

Answer 1

Answer:

1. The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.

2. Due to friction we have to exert more power in machines.

3. It opposes the motion.  

4. Due to friction, noise is also produced in machines.

5. Due to friction, engines of automobiles consume more fuel which is a money loss.

Explanation:

Answer 2

Answer:

Disadvantages of friction

Explanation:

The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.

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The disadvantages of friction are:

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

2. Parts of machine might lose their shape.

3. Machine might stop working properly.

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