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प्रश्न
State the energy change in the following device while in use:
A loudspeaker
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उत्तर
Electric energy to sound.
संबंधित प्रश्न
Write true or false of the following statement.
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
State the changes in form of energy while producing hydro electricity.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
State the energy changes in the following case while in use:
a ceiling fan
Explain the principle of producing electricity using the nuclear energy.
Name the energy changes for the following
human body
What kind of energy is possessed in a situation when?
A horse running along a level road
Write the type of energy possessed in the following case:
A moving cricket ball.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
