3b10.75.HTML
3b10.75: PENDULUM WAVES

PURPOSE: To create waves in a very dramatic way using a series of fifteen carefully adjusted independent pendula.

DESCRIPTION: After the pendula are started into oscillation with the same phase, they pass through a series of various standing wave and traveling wave patterns, finally returning to their initial mode, in which they were all in phase. This is a GREAT demonstration - takes about one minute.

SUGGESTIONS: Practice starting it so that the pendula continue to swing transverse to the support bar and do not hit each other.

REFERENCES: See Demonstration Reference File for article on our apparatus.

EQUIPMENT: As photographed.

SETUP TIME: None.


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