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प्रश्न
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
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उत्तर
The kinetic energy changes to potential energy.
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संबंधित प्रश्न
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
Fill in the blank
The energy possessed by a body due to its position is called ________ energy.
State the energy changes in the following case while in use:
an electric bulb
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:
Coal
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
What kind of energy is possessed in a situation when?
A horse running along a level road
What is the main energy transformation that occur in:
Photosynthesis in green leaves.
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)
