Question

Write true or false for each statement:

(a) A coolie does not work against the force of gravity while carrying a luggage on a plane road.

(b) The energy stored in water of a dam is kinetic energy.

(c) The energy of a flying kite is kinetic energy.

(d) Work done by a boy depends on the time in which he does work.

(e) Power spent by a bosy depends on the time for which it does work.

Answer 1

(a) A coolie does no work against the force of gravity while carrying a luggage on a road.
Answer. True

(b) The energy stored in water of a dam is the kinetic energy.
Answer. False
The energy stored in water of a dam is the potential energy.

(c) The energy of a flying kite is kinetic energy.
Answer. True

(d) Work done by a boy depends on the time in which he does work.
Answer. False

(e) Power spent by a body depends on the time for which it does work.
Answer. True