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प्रश्न
State the energy changes in the following case while in use:
an electric toaster.
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उत्तर
Electrical energy into heat energy.
संबंधित प्रश्न
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
State the energy change in the following device while in use:
A loudspeaker
Geothermal energy is produced by the:
(a) fission of radioactive materials
(b) burning of coal inside the coal mines
(c) combustion of natural gas deep inside the earth
(d) fusion of radioactive substances
State two disadvantages of producing electricity from solar energy.
Name the energy changes for the following:
electric ball
Name the form of energy in which potential energy can change.
Write five forms of energy.
What do you understand by the kinetic energy of the body?
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
