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प्रश्न
State four ways for the judicious use of energy.
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उत्तर
Four ways for the judicious use of energy:
(a) The fossil fuels such as coal, petroleum, natural gas should be used only for the limited purposes when there is no other alternative source of energy available.
(b) The wastage of energy should be avoided.
(c) Efforts must be made to make use of energy for community or group purposes.
(d) The cutting of trees must be banned and more and more new trees must be roped to grow.
संबंधित प्रश्न
Explain how, geothermal energy is used to generate electricity.
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
State two factors on which the kinetic energy of a moving body depends.
Name three non-renewable sources of energy.
How is the solar energy used to generate electricity in a solar power plant?
How is wind energy used to produce electricity?
Write five forms of energy.
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
What is meant by energy?
