The Principle of Conservation of Energy says that energy can not be created or destroyed. It also says what energy does do, as this diagram shows:
![](https://homeworkhelpforkids.co.uk/wp-content/uploads/energy-conservation-1-1024x576.png)
3rd September 2017
The Principle of Conservation of Energy says that energy can not be created or destroyed. It also says what energy does do, as this diagram shows: