PURPOSE: To demonstrate what happens when an object exceeds its center of gravity.

DESCRIPTION: Tall yellow beam can be raised or lowered about a base-mounted pivot. Plumb bob is hung at the center of mass of the beam. When the bob goes outside the base, the system becomes unstable and tips over.

SETUP TIME: Ready to go.

COMPONENT LIST:

  Leaning Tower of Physics Apparatus			Back of 1st aisle

							(between EM and CM shelves)

SUGGESTIONS:

REFERENCES: PIRA 1J11.10

OTHER NOTES: