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Sources Of Energy

Question
CBSEENSC10013656
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List any four sources of energy which are selected for use for a given activity. 

1. Energy to run a cycle
2. Energy to run a car
3. Energy to cook food 
4. Energy to work on 

Solution

Four sources of energy used in the activity is:

1. Energy of muscles 
2. Chemical energy of petrol or diesel
3. Chemical energy of gas or kerosene
4. Electrical energy obtained from potential energy. Electrical appliances of water, chemical energy of fuels etc. 

Some More Questions From Sources of Energy Chapter

'Replenishment of energy source like wood takes a long time but it is considered as renewable source of energy.'  Comment.

What constitutes a source of energy?

State the two forms in which energy is mainly utilised at our homes.

What is meant by the transformation of energy? Explain giving an example.

When a body falls freely to the ground, its velocity reduces to zero and the sum total of kinetic energy and potential energy also becomes zero. Does it violate the law of conservation of energy?

Write two advantages of classifying energy sources as renewable and non-renewable. 

Justify in one sentence that hydropower (hydro electricity) is a renewable source of energy.

What is a good source of energy?

What is a good fuel?

If you could use any source of energy for heating your food, which one would you use and why?

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