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प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A stretched rubber band.
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उत्तर
Potential energy.
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संबंधित प्रश्न
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Write an expression for the potential energy of a body of mass m placed at a height h above the earth's surface. State the assumptions made, if any.
State the energy changes in the following case while in use:
an electric bulb
State the energy changes in the following case while in use:
a ceiling fan
Name three non-renewable sources of energy.
State two disadvantages of producing electricity from solar energy.
Give one example when:
Electric energy changes to mechanical energy.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
What is meant by energy?
