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प्रश्न
State the energy changes that occur in the following :
The unwinding of a watch spring.
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उत्तर
Potential energy to kinetic energy.
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संबंधित प्रश्न
State the energy changes in the following case while in use:
An electric iron
State the energy changes in the following while in use An electric bulb.
Fill in the blank
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State the energy changes in the following case while in use:
An electromagnet.
A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. What happens to the mechanical energy after the ball hits the ground and comes to rest?
Choose the odd one:
The velocity of a body moving in a straight line is increased by applying a constant force F, for some distance in the direction of the motion. Prove that the increase in the kinetic energy of the body is equal to the work done by the force on the body.
State the energy changes in the following case while in use:
A glowing electric bulb
State the energy changes in the following case while in use:
An electric cell in a circuit
In an electric cell while in use, the change in energy is from ______.
