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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.
संबंधित प्रश्न
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
State the changes in form of energy while producing hydro electricity.
Select the renewable and non-renewable sources of energy from the following:
Wood
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Is it possible that a body may possess energy even when it is not in motion?
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
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)
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A moving cricket ball
