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Question
Is it possible that a body may possess energy even when it is not in motion?
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Solution
Yes, the body may possess potential energy.
RELATED QUESTIONS
(i) The conversion of part of the energy into an undesirable form is called ______________.
(ii) For a given height h, __________________ the length l of the inclined plane, lesser will be the effort required.
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.
Name the energy changes for each of the following cases:
dynamo
What is dissipation of energy?
What is the main energy transformation that occur in:
Charging of a battery.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
State the energy changes which take place when:
Burning of coal.
Give one example when:
Kinetic energy to potential energy.
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)
Use your brain power!
Why do tablets of camphor decrease in size day by day?
