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प्रश्न
How is kinetic energy possessed by a moving body measured?
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उत्तर
The kinetic energy possessed by a moving body is measured by the amount of work done by an opposing force in bringing the body to rest from its present state of motion.
संबंधित प्रश्न
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
State the work energy theorem.
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
Obtain an expression for the potential energy of a body of mass m at a height h above the ground.
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
State the energy changes which take place when:
Electricity obtained from nuclear energy.
Give one example when:
Kinetic energy changes to heat energy.
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
