PURPOSE: Show the effects of electrostatic attraction and repulsion.

DESCRIPTION: Counterweighted balls (one painted red, one painted white) turn on a pivot when a charged rod is brought near.

SETUP TIME: Less than 5 minutes.

COMPONENT LIST:

 Counterweighted balls				Static Electricity Cabinet

  Rods, fur, wool, etc....					"

SUGGESTIONS: See Vincent's 2122 Demonstration Booklet for further Instructions.

REFERENCES: PIRA 5A20.27; AJP 30(12), xi; TPT 1(5), 225

OTHER NOTES: