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प्रश्न
What are the various forms of energy?
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उत्तर
Energy exists in various forms in our universe. Some of the major forms of energy are:
(i) Kinetic energy
(ii) Potential energy
(iii) Chemical energy
(iv) Heat energy
(v) Light energy
(vi) Sound energy
(vii) Electrical energy
(viii) Nuclear energy
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संबंधित प्रश्न
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
A ball of mass 0.20 kg is thrown vertically upwards with an initial velocity of 20 m s-1. Calculate the maximum potential energy it gains as it goes up.
What kind of energy is possessed by the following?
A stone kept on roof-top _______________
Name the device or machine which convert :
Light energy into electrical energy.
Fill in the blank with suitable word:
The electricity meter installed in our homes measure electrical energy in the units of ___________.
Explain the transformation of energy in the following cases :
(i) A ball thrown upwards.
(ii) A stone dropped from the roof of a building.
An object is falling freely from a height x. After it has fallen a height `pi/2` , it will possess :
The device which converts mechanical energy into energy which runs our microwave oven is :
A microphone converts :
A body of mass 10 kg falls from a height of 20 m to 8 m. Calculate:
- the loss in potential energy of the body, and
- the total energy possessed by the body at any instant? (Take g = 10 m s-2)
