PHYSICS   LECTURE   DEMONSTRATIONS

M-O2 : Coupled Pendulums

UNIT: Oscillations
PURPOSE: To use coupled pendulums to understand energy transfer
EQUIPMENT:
1. Stand
2. Three balls, two with string of same length, and all hanging from the same string
3. String
SUGGESTIONS:
Make sure the string length of two of the three pendulums is exactly the same, while the third is significantly different.
DISCUSSION:
1.
2.
3.
4.
5.

1. The set-up
2. One of the shorter pendulums before release
3 and 4. The second short pendulum at its maximum swing, having acquired all of the mechanical energy of the system
5. Intermediate stage, the two short pendulums share the mechanical energy of the system