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प्रश्न
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
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उत्तर
The kinetic energy of water molecules is released in the form of heat energy.
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संबंधित प्रश्न
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
State the work energy theorem.
Differentiate between the potential energy (U) and the kinetic energy (K).
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
What is the main source of energy for earth?
Give three examples of bodies possessing potential energy.
State the energy changes which take place when:
Water stored in dams rotates turbine connected to a dynamo.
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A compressed spring
