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प्रश्न
Give one example when:
Chemical energy changes to light energy.
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उत्तर
During the burning of magnesium, chemical energy changes to light energy.
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संबंधित प्रश्न
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
Select the correct alternatives
A ball rolling on the ground possesses
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
What is wind energy?
State two advantages and two disadvantages of using hydro-energy for producing electricity.
Explain the principle of working of the windmill for generating electricity.
State two advantages and disadvantages of using nuclear energy for producing electricity.
State the energy changes which take place when:
Electricity obtained from nuclear energy.
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?
