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The energy possessed by a body due to its position is called ________ energy.
Select the correct alternatives
A ball rolling on the ground possesses
Select the correct alternatives
The energy stored in an electric cell is
State the work energy theorem.
State the energy changes in the following case while in use:
a ceiling fan
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
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)
Find out the types of energy from the following puzzle.
