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प्रश्न
You might have seen some beautiful fireworks during Diwali. It is an example of the transformation of ______ energy into ______ energy.
पर्याय
light
atom
chemical
solar
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उत्तर
You might have seen some beautiful fireworks during Diwali. It is an example of the transformation of chemical energy into light energy.
संबंधित प्रश्न
Fill in the blank
An object falling freely from the roof of a multistorey building has ________ and _________ energy when halfway down the building.
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
Name the type of energy (kinetic or potential) possessed by the following:
A moving cricket ball.
State different forms of potential energy and give one example of each.
The following are some of the energy transformations.
A. Electrical to light
B. Work to heat
C. Chemical to light
D. Electrical to sound
E. Mechanical to electrical
Identify the energy transformation that takes place in the following by inserting the corresponding letter in the shape provided.
(i) A candle flame
(ii) A torch is lighted
(iii) A microphone is used in a meeting
(iv) A cycle dynamo
(v) A piece of metal is being filed
State the energy changes which take place when:
Water stored in dams rotates turbine connected to a dynamo.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
