At-home STEM Activities: DIY Wave Pendulum

Have you seen the wave pendulum at the Discovery Center? It features golf balls hung from different length strings, and when you pull all the balls back at the same time, they swing back and forth at different rates. As they swing, they seems to form a wave shape. The way it works is almost like magic, but there’s no witchcraft involved—just physics! Since we can’t go to the Discovery Center’s wave pendulum right now, let’s make our own to play with at home!

This activity takes a bit of finesse and care to get right—good for older learners!