Gravity demo

An unforgettable way to demonstrate many common forces at work all throughout our universe- like gravity and centripetal. Takes time to prepare, but once done you’re set to use on a moment’s notice.

Materials: small cup with water, ‘flippy board’ (instructions to build are on this video) made from masonite (also called hardboard) and string

(this is an excerpt from the lesson- “Distant Forces“)