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प्रश्न
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in a car going uphill.
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उत्तर
- Kinetic energy to potential energy (because the vehicle is approaching a specific height).
- Chemical energy to Kinetic energy (because the car is in motion).
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संबंधित प्रश्न
Fill in the blank
Green plants convert _________ energy into chemical energy.
State the energy changes that occur in the following :
An electric generator (or dynamo).
State the energy changes in the following case while in use:
a steam engine
State the energy changes in the following case while in use:
Microphone
State the energy changes in the following case while in use:
Burning coal
State the energy changes in the following case while in use:
An electromagnet.
Explain conservation of energy.
Can any object have mechanical energy even if its momentum is zero? Explain.
Is it possible that an object is in a state of accelerated motion due to external force acting on it, but no work is being done by the force? Explain it with an example.
In an electric cell while in use, the change in energy is from ______.
