EASY
9th CBSE
IMPORTANT
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The energy possessed by an oscillating pendulum of a clock is _____.

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Important Questions on Work and Energy

EASY
9th CBSE
IMPORTANT
The gravitational potential energy of an object is due to :
EASY
9th CBSE
IMPORTANT
A ball is dropped from the height of 10 m.
EASY
9th CBSE
IMPORTANT
If the velocity of the body is doubled, its kinetic energy _____.
EASY
9th CBSE
IMPORTANT
How much time will be required to perform 520 J of work at the rate of 20 W?
EASY
9th CBSE
IMPORTANT

A student carries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is ______.

(g=10 m/s2)

EASY
9th CBSE
IMPORTANT
The work done is 0 if :
EASY
9th CBSE
IMPORTANT
One unit of electrical energy is equal to _____.
EASY
9th CBSE
IMPORTANT
Define 1 watt of power.