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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
State the energy change in the following device while in use:
A loudspeaker
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
State different forms of potential energy and give one example of each.
Name the energy changes for the following
human body
Name the energy changes for each of the following cases:
dynamo
Write the type of energy possessed in the following case:
A moving cricket ball.
Draw a diagram to show the energy changes in an oscillating simple pendulum. Indicate in your diagram how the total mechanical energy in it remains constant during the oscillation.
A body of mass 0.2 kg falls from a height of 10 m to a height of 6 m above the ground. Find the loss in potential energy taking place in the body. [g = 10ms−2]
Can you tell?
Describe one natural chain of transformation of energy.
Use your brain power!
Why do tablets of camphor decrease in size day by day?
