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प्रश्न
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
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उत्तर
The energy of a body in motion is called it's kinetic energy. It is defined as follows :
Kinetic energy of a body is the energy possessed by it due to its state of motion.
Actually, it is the work done on the body bringing it to the state of motion. In short form it is written as K.E. or K.
Example: In a swinging pendulum moving to and fro, the bob has the kinetic energy.
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संबंधित प्रश्न
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
A stretched wire
State different forms of potential energy and give one example of each.
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
State the energy changes in the following case while in use:
an electric toaster.
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
What do you understand by the kinetic energy of the body?
State the energy changes which take place when:
A body released from rest from the top of a building.
Give one example when:
Electric energy changes to sound energy.
Geothermal energy is:
