Science Common Sense
1059 - What is the law of conservation of energy?
The law of conservation of energy is a simple rule that says: energy can't be created or destroyed, only changed from one form to another.
Think of it like this: imagine you have a ball at the top of a hill. The ball has potential energy (stored energy) because it's up high. When you roll it down the hill, the potential energy turns into kinetic energy (moving energy).
But the total amount of energy remains the same. It just changes from one form to another. This is what the law of conservation of energy means.