CBSE Class 10 Science Sources Of Energy Notes Set C

CBSE Class 10 Physics Sources of Energy Notes. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the examinations.

CBSE Class 10 Physics Sources of Energy Notes. Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the examinations. 

Class X: Physics

Chapter 14: Source s of Energy

Key Learning:

1. A windmill is a simple machine that works with the energy of the wind. The windmill can be used to run a pump to draw water from the ground. It can also be used to run a flour mill to grind grain.

2. The moving water also possesses kinetic energy. The water – wheel is a device used for obtaining energy from flowing water.

3. The energy of naturally flowing water in high rivers is generally stored behind dams as potential energy and then further used to generate electricity. The electricity produced by using the energy of flowing water is known as hydro – electric power. The most important advantage of water energy is that like wind energy, it does not cause any pollution.

4. Renewable sources of energy: The renewable sources of energy are those sources which are being produced continuously in nature and are inexhaustible. The important examples of renewable source of energy are: wood, falling water, geothermal power, sun, wind,, tides, gobar gas etc. The renewable source are also known as non – conventional sources of energy.

5. The non – renewable sources are those sources which got accumulated in nature over a long time and can’t be quickly replaced when they get exhausted. The important examples of non – renewable sources of energy are: Coal, natural gas, petroleum, uranium, etc. The non – renewable sources are also known as conventional sources of energy.

6. The energy radiated by the sun is called solar energy. It is interesting to note that the solar energy recovered on the earth in one day is about 50, 000 times more than the total energy consumed by all the nations of the world in one year.

7. There are two limitations of solar energy:

a. The solar energy that reaches the earth is in a very diffused form

b. The solar energy is not uniformly available at all the time and all the places.

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