5A40.24 - Van de Graaff - Bubbles

Turn on the Van de Graaff and blow soap bubbles at it.  Initially the bubbles will be attracted to the Van de Graaff until the first bubble touches the Van de Graaff and breaks.  At that point the rest of the bubbles will stop, turn around, and travel away from the Van de Graaff.
Code Number:
5A40.24
Demo Title:
Van de Graaff - Bubbles
Condition:
Good
Principle:
Electrostatics
Area of Study:
Electricity & Magnetism
Equipment:
Van de Graaff generator, soap bubble solution, bubble wand.
Procedure:

Turn on the Van de Graaff and blow soap bubbles at it.  Initially the bubbles will be attracted to the Van de Graaff until the first bubble touches the Van de Graaff and breaks.  At that point the rest of the bubbles will stop, turn around, and travel away from the Van de Graaff.

References:
  • Andrew A. Ruether, "Smart Bubbles", TPT, Vol. 33, # 5, p. 279, May 1995.
  • Charles Vivian, "Electrifying a Bubble", Science Experiments & Amusements For Children, p. 36.
  • Rudolf F. Graf, "Dancing Soap Bubbles", Safe and Simple Electrical Experiments, p. 33.


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