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प्रश्न
What kind of energy is possessed in a situation when?
A shooting arrow.
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उत्तर
Kinetic Energy.
संबंधित प्रश्न
State two advantages of geothermal energy.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
What is ocean? Explain in brief.
State two disadvantages of using wind energy for generating electricity.
State the energy transformation on the following:
Electricity is obtained from wind energy.
Name the energy changes for each of the following cases:
dynamo
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
Give two examples each of renewable and non-renewable sources of energy?
State two advantages and two disadvantages of using hydro-energy for producing electricity.
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
