Apparatus may be used to explore the laws of motion without an air table and to study the inertia, constant velocity and acceleration, and collisions in two dimensions. On flat smooth surface, the balloon puck can glide through without much resistance. Pucks ride on a film of air produced by air escaping from balloons, which are inflated and attached to the pucks. Kit includes two large pucks, two small pucks, four rubber stoppers, four tubes, four balloons and four rubber bands.
