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प्रश्न
State the energy changes which take place in Electricity is obtained from solar energy.
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उत्तर
Heat energy from the sun is converted into electricity.
संबंधित प्रश्न
What is geothermal energy?
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
What is tidal? Explain in brief.
State two uses of solar cells.
What is hydro energy?
Renewable source of energy is:
Give three examples of bodies possessing potential energy.
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
