PURPOSE: To qualitatively demonstrate elastic and inelastic two-dimensional collisions.

DESCRIPTION: Two or more pucks can be used to demonstrate elastic collisions. Velcro collars on pucks (front row of right picture) produce perfectly inelastic collisions.

SUGGESTIONS: The air table is only available in rooms 1410, 1412, and 0405 because it will not fit through a standard door.

REFERENCES: (PIRA 1N40.20, 21, and 22)

EQUIPMENT: Air table, pucks, velcro collars.

SETUP TIME: 10 min.