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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
State the energy change in the following device while in use:
A glowing electric bulb.
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Name the type of energy (kinetic or potential) possessed by the following:
Water flowing in a river.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving bus
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
Select the renewable and non-renewable sources of energy from the following:
Diesel
Give one example when:
Chemical energy changes to light energy.
Give one example when:
Mechanical energy to heat energy.
Use your brain power!
Why do tablets of camphor decrease in size day by day?
