Is the rule of the energy conservation (conservation of energy) in the process of change that energy will not be recreated and is not lost. But it can be changed to another format.
The law of conservation of energy (Conservation of energy) in the energy changes that are being rebuilt and is not lost. But can be changed in other ways.
Is the law of the conservation of energy (Conservation of energy) in the process of change, that power is not built up new and lost. But can change into another form.