Question

Define the law of conservation of energy.

Answer 1

Law of conservation of energy:

1. One of the fundamental laws of physics is the conservation of energy.
2. The law of conservation of energy states that "the total energy of a closed system, that is, a system that is isolated from its surroundings, is conserved." Even if energy transformation happens, the overall energy in a system is conserved according to the law.
3. Energy cannot be generated or destroyed; it can only be changed from one state to another.
4. For example, Heat is used to generate steam which moves the pistons and thereby converting heat energy to mechanical energy.