"Avantor"

Set of three undrilled balls.

Incredibly simple alternative to traditional force tables.

Ideal for studying collisions in two dimensions, these pucks can be supported on plastic beads or levitated with air from the balloons to reduce friction. Use on any smooth, flat surface. The pucks measure 10 cm in diameter, and one puck is twice the mass of the other two.

Useful for collision and pendulum experiments.