Question

what is the law of conservation of energy​

Answer 1

Answer:

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time

Answer 2

In physics and chemistry, the laws of conservation of energy states that the total energy of an isolated system remains constant ; it is said to be concerned over time. This law first proposed and tested by Emilie du chatelet means energy can neither be created nor destroyed but it can be transformed from one form to another.

For ininstance, chemical energy is converted into kinetic energy when a stick of dinamite explores. If one adds of all form of energy that were released in the explosion, such as the kinetic energy and potential energy of the pieces, as well as heat and sound, one will get exact decrease of chamical energy in the combation of the dynamite.

conservation of energy can be rigorisly proven by Noether's theorem as a consconsequence of continous time translation symmertry, that is, from the fact that the laws of physics do not change over time.

hope it helps you.