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प्रश्न
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
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उत्तर
The mechanical energy changes to potential energy during winding. The potential energy is then released in the form of kinetic energy.
संबंधित प्रश्न
Define calorific value of a fuel.
Give one example of a body that has potential energy, in due to its state.
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the highest point .
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
What is wind energy?
What is nuclear energy?
Name the form of energy in which potential energy can change.
Explain the principle of working of the windmill for generating electricity.
What ts the original source of energy for the electricity produced at a thermal power station?
