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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
Which of the following produces more heat (per unit mass) on burning?
State two disadvantages of geothermal energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
State the energy changes in the following case while in use:
an electric cell in a circuit
Select the renewable and non-renewable sources of energy from the following:
Wind
State whether a solar cell produces a.c. or d.c.
What kind of energy is possessed in a situation when?
A cocked up spring of air gun.
What kind of energy is possessed in a situation when?
A shooting arrow.
Write the type of energy possessed in the following case:
A moving cricket ball.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
