Junior Vocab
The Fascinating Pendulum
pendulumgravityweight on a stick. Because the weight is pulled down by on a stick. Because the weight is pulled down byHave you seen a swing moving back and forth in a park? A, it hangs straight, but if you push it to one side, it will swing from side to side. is like that, but instead of a person sitting, it's a , it will swing from side to side. is like that, but instead of a person sitting, it's a
tick-tockSo, the pendulumpendulumsteady . You can see a in actionperfect time. keeps swinging at the same speed, back and forth, like a on a grandfather clock, where it helps keep