The law of conservation of energy can be difficult to understand. Fear not, A Moment of Science is here to help!
Heat was once thought to be a liquid. However, we know know that heat is a measure of kinetic energy.
Potential energy in a crossbow in this Moment of Science.
How is swinging on a swing related to physics? What are potential and kinetic energy?
Energy can neither be created out of nothing, nor disappear into nothing, all it does is change forms. Learn more on this Moment of Science.
Ever wonder why Major League ball players only swing with wooden bats and not aluminum? Well, they can’t use aluminum. Mark McGuire hits the ball 500 feet, but with an aluminum bat he’d get 700 feet easily.