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Define Energy and State the Unit of Energy and the Law of Conservation of Energy. - Physics

Definition

Define energy and state the unit of energy and the law of conservation of energy.

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Solution

The energy of a body is its capacity to do work.
The SI unit of work is 'joules' and the CGS unit is 'erg'.
According to the law of conservation of energy, energy can neither be created nor be destroyed but can be transformed from one form to another. In other words, energy can be transformed from one form to another but the total amount of all the energies remain the same.

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Frank ICSE Class 10 Physics Part 2
Chapter 1 Force, Work, Energy and Power
Exercise | Q 13 | Page 59
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