Advertisements
Advertisements
प्रश्न
State the energy changes in the following case while in use:
an electric cell in a circuit
उत्तर
Chemical energy into electrical energy.
APPEARS IN
संबंधित प्रश्न
Geothermal energy is produced by the:
(a) fission of radioactive materials
(b) burning of coal inside the coal mines
(c) combustion of natural gas deep inside the earth
(d) fusion of radioactive substances
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the highest point .
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is just in the middle .
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
Select the renewable and non-renewable sources of energy from the following:
Wood
Is it possible that a body may possess energy even when it is not in motion?
Write the type of energy possessed in the following case:
A falling apple
What is nuclear energy? Explain the principle of producing electricity using nuclear energy is a nuclear reactor.
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)
