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प्रश्न
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संबंधित प्रश्न
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
Name the form of mechanical energy, which is put to use.
What is the main source of energy for earth?
A ball of mass 0.5 kg slows down from a speed of 5m/s-1 to that of 3m/s-1. Calculate the change in kinetic energy of the ball.
What do you understand by mechanical energy?
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
Write the type of energy possessed in the following case:
A moving cricket ball.
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)
