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प्रश्न
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
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उत्तर
Potential Energy.
संबंधित प्रश्न
Give one example of a body that has potential energy, due to its position at a height.
What do you understand by the kinetic energy of a body?
State the energy changes in the following case while in use:
an electric toaster.
Select the renewable and non-renewable sources of energy from the following:
Oil
State two disadvantages of producing electricity from solar energy.
State the energy transformation on the following:
Electricity is obtained from hydro energy.
State the energy changes which take place when:
A body released from rest from the top of a building.
State the energy changes which take place when:
Electricity obtained from nuclear energy.
In a hydroelectric power station, 1000 kg of water is allowed to drop through a height of 100 m in 1 sec. If the conversion of potential energy to electric energy is 60%. Calculate the power output. [Take: g = 10m/sec2]
Energy from various sources is considered to have been derived from the sun. Do you agree? Justify your answer.
