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प्रश्न
Write the type of energy possessed in the following case:
A falling apple
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उत्तर
Kinetic Energy
संबंधित प्रश्न
State the energy change in the following device while in use:
A loudspeaker
What is the main source of energy for earth?
Name two examples in which the mechanical energy of a system remains constant.
A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:
The total energy possessed by the body at any instant? (Take g = 10 ms-2).
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?
Give three examples of bodies possessing potential energy.
Give one example when:
Heat energy changes to kinetic energy.
Two bodies, A and B of equal mass are kept at heights 20 m and 30 m respectively. Calculate the ratio of their potential energies.
In a hydroelectric power station, 1000 kg of water is allowed to drop through a height of 100 m in 1 sec. If the conversion of potential energy to electric energy is 60%. Calculate the power output. [Take: g = 10m/sec2]
You do not have rangoli powder. What things can you use as an alternative?
