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प्रश्न
What do you understand by the kinetic energy of the body?
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उत्तर
The kinetic energy of a body is the energy possessed by the body by virtue of its state of motion.
संबंधित प्रश्न
What is the source of heat contained in geothermal 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 boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
State two disadvantages of producing electricity from solar energy.
Name the form of energy in which potential energy can change.
Give one example when:
Sound energy changes to electric energy.
Give one example when:
Kinetic energy to potential energy.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
