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प्रश्न
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
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उत्तर
The kinetic energy changes to potential energy when stone rises up. The potential energy then changes back to kinetic energy, when stone comes down.
संबंधित प्रश्न
What is geothermal energy?
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving cricket ball
Differentiate between the potential energy (U) and the kinetic energy (K).
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Name the form of energy in which potential energy can change.
Write the type of energy possessed in the following case:
A falling apple
Give one example when:
Light energy changes to chemical energy.
Give one example when:
Electrical energy to heat energy.
