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प्रश्न
What is geothermal energy?
उत्तर १
Geothermal power plants use heat of the Earth to generate electricity. This heat energy of the Earth is known as geothermal energy.
उत्तर २
Geothermal energy:
Geothermal energy is the heat energy obtained from the fission of radioactive materials present in the hot rocks inside the earth. It is clean and sustainable.
संबंधित प्रश्न
Explain how, geothermal energy is used to generate electricity.
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
Select the renewable and non-renewable sources of energy from the following:
Wood
A metal ball of mass 2kg is allowed to fall freely from rest from a height of 5m above the ground.
What the kinetic energy of the ball just before it hits the ground ?
What do you understand by the potential energy of the body?
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
State the energy changes which take place when:
A car moves up a hill.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
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]
Can you tell?
Describe one natural chain of transformation of energy.
