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प्रश्न
Name the form of mechanical energy, which is put to use.
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उत्तर
Kinetic energy.
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संबंधित प्रश्न
Fill in the blank
Energy possessed by a compressed spring is ______ energy.
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
Give three examples of bodies possessing kinetic energy.
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?
State two advantages and two disadvantages of using hydro-energy for producing electricity.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
State the energy changes which take place when:
A magnesium ribbon burns in air.
What is the difference between the solid, liquid, and gaseous states of a substance?
