When it comes to law of conservation of energy, it states:
There is a possibility that the complete energy found in a system may not get transformed completely. In case of change in energy, it gets transformed to another form.
Therefore, it can be said that the law of conservation of energy is the change in energy that occurs in an object due to transformation which is equal to that of work performed on object.
Conservation of energy formula
The basic formula related to the concept is:
Energy spend in one act = Energy gained in related act
An object when you drop from a height may transform its potential energy into kinetic energy. When it is expressed in mathematical term, it is said as conservation of energy equation:
Mgh = ½ mv2
When it comes to electrical energy that is found in electric heater, it gets converted to thermal energy that may increase temperature of any substance that gets heated. The conservation of energy equation may be written as:
W x t = m x s x T
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