Physics joke for kids

Vacuum: A large, empty space where the pope lives.

One horsepower is the amount of energy it takes to drag a horse 500 feet in one second.

When they broke open molecules, they found they were only stuffed with atoms. But when they broke open atoms, they found them stuffed with explosions.

Someday we may discover how to make magnets that can point in any direction.

The law of gravity says no fair jumping up without coming back down