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प्रश्न
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उत्तर
When the head of a nail is struck with a hammer, the mechanical energy of the hammer pushes the nail into the plank of wood and in this process a part of energy is converted into heat energy.
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संबंधित प्रश्न
Explain how, geothermal energy is used to generate electricity.
A certain form of energy which is not sourced directly or indirectly from the sun and does not cause any pollution is very easily converted into electricity. This form of energy is, however, not available everywhere. Moreover, it is technically very difficult and expensive to obtain it. Name the form of energy.
Name the type of energy (kinetic or potential) possessed by the following:
A moving bus.
Name six different forms of energy?
Identify the type of energy possessed by the body in each of the following:
(a) A coiled spring of the toy car
(b) A hammer which is raised
(c) A stone shot from a catapult
(d) Water stored in the overhead tank
(e) A tadpole moving in water.
Write five forms of energy.
What do you understand by mechanical energy?
Give three examples of bodies possessing potential energy.
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
State the energy transformation on the following:
Electricity obtained from hydro energy.
