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प्रश्न
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उत्तर
Whenever one form of energy dissipates or disappears, another form of equivalent amount of energy is produced; this is referred to as transformation of energy.
E.g. when a particular switch is pressed electric lamps light up owing to the heat produced in the filament. This is the transformation of electrical energy to heat and light energy.
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संबंधित प्रश्न
State two factors on which the kinetic energy of a moving body depends.
Differentiate between the potential energy (U) and the kinetic energy (K).
How is the solar energy used to generate electricity in a solar power plant?
Identify the type of energy possessed by the body in each of the following:
(a) A coiled spring of the toy car
(b) A hammer which is raised
(c) A stone shot from a catapult
(d) Water stored in the overhead tank
(e) A tadpole moving in water.
Write the type of energy possessed in the following case:
A moving cricket ball.
State the energy changes which take place when:
In a heat engine.
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
The solar cooker is an application of the ______ energy of the sun, while solar cells, solar lamps are applications of the ______ energy of the sun.
The major problem in harnessing nuclear energy is how to
