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प्रश्न
What kind of energy is possessed in a situation when?
A horse running along a level road
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उत्तर
Kinetic Energy.
संबंधित प्रश्न
What name is given to the heat energy obtained from hot rocks inside the earth?
Name the physical quantity measured in terms of horse power.
How is wind energy used to produce electricity?
Name two examples in which the mechanical energy of a system remains constant.
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
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
State two advantages and two disadvantages of using hydro-energy for producing electricity.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Give one example when:
Sound energy changes to electric energy.
Nuclear fission is
