In physics, energy is the quantitative property that needs to be transferred to perform work or heat an object. The Law of conservation of Energy states that energy can neither be created no destroyed, it can only be converted from one form to another. The unit of measurement of energy is Joule and it is defined as the energy transferred to move an object by 1 metre against a force of 1 newton.
There is a very close relation between mass and energy which states that when an object is in rest it also has an equivalent amount of rest energy and any energy obtained to move the object will in theory increase the object’s mas as well.
There are different forms of energy, and in the end they can all be classified into one of the following:
• Mechanical wave
• Sound wave
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