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प्रश्न
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उत्तर
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संबंधित प्रश्न
The energy of a body is its capacity to do .........
State two disadvantages of producing hydroelectricity.
State the energy transformation on the following:
Electricity is obtained from solar energy.
Complete the following sentences:
Kilowatt is the unit of ....... and kWh is the unit of
A cricket ball is thrown up from the earth's surface. What happens to its P.E.
(a) during the motion
(b) at the highest point?
Calculate the amount of work done by a child carrying a bag of 20 kg when he moves a distance of 40 m in
(a) Vertical direction, and
(b) Horizontal direction
Can two agents, doing the same work, have different power?
Why is less effort needed to lift a load over an inclined plane as compared to lifting the load directly?
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Suma is swimming in a pond.
