Collisions in Two Dimensions Concept

Demonstrations in Collisions in Two Dimensions

Purple (#4) and yellow billiard balls sitting on flat metal channel guides on a green surface, positioned for a head-on collision

Momentum Transfer in 2 Dimensions

Demonstrates elastic collisions in 1D and 2D using billiard balls launched from metal channel guides. Students observe that head-on collisions produce complete velocity exchange (180° rebound), while offset collisions scatter …

Three superballs of different sizes on ring stands: large multicolored swirled ball (4.5 in.) on black stand at left, small earth-patterned ball (2 in.) on white stand in center, medium purple and white marbled ball (3 in.) on silver stand at right

Superballs

A collection of different-sized superballs for comparing coefficients of restitution and demonstrating how spin affects bounce direction. Drop simultaneously to compare energy loss, or apply spin to show trajectory changes …