When we rub our hands together- nbsp-frictional force gives rise nbsp-to- Light energy-Heat energy-Electrical energy-Chemical energy-

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Standard VIII

Physics

Advantages and Disadvantages of Friction

When we rub o...

Question

When we rub our hands together, frictional force gives rise to:

Light energy

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Heat energy

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Electrical energy

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Chemical energy

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Solution

The correct option is B
Heat energy

When we rub our hands together, there is relative motion which is opposed by friction. As a result of this, heat energy is generated and our hands feel warm.

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(b) Chemical energy into electrical energy.
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Q. Name the devices or machines which convert :

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When we rub our hands together, frictional force gives rise to:

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When we rub our hands together, frictional force gives rise to:

The correct option is B Heat energy When we rub our hands together, there is relative motion which is opposed by friction. As a result of this, heat energy is generated and our hands feel warm.

The correct option is B
Heat energy

When we rub our hands together, there is relative motion which is opposed by friction. As a result of this, heat energy is generated and our hands feel warm.