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प्रश्न
State the energy changes in the following case while in use:
a ceiling fan
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उत्तर
electrical energy into mechanical energy
संबंधित प्रश्न
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
State two advantages of using wind energy for generating electricity.
Explain the principle of producing electricity using the nuclear energy.
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
Name the energy changes for the following:
electric ball
State the energy changes which take place in Electricity is obtained from solar energy.
Name a device in which solar energy is converted into electricity state its two uses.
State the energy changes which take place when:
A body released from rest from the top of a building.
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A compressed spring
