Physics Demonstrations
Department of Physics and Astronomy
Physics Demonstrations

Resonance Rods

Identifier: M: WM&S - 039

Resonance Rod Apparatus

Concept Overview

Visual demonstration of resonance

Lecturer Procedure

Step(s) to FollowExpected Result
  1. Rock apparatus back and forth using the board attached to the end.
  2. Find the rhythm of the colored tip to which you would like resonance to occur.
  3. Rock with that rhythm.
The colored tips experiencing resonance will have a significantly greater displacement.

Alternately:

  1. Pull one cube to the side and release.
The other cube of the same color will begin to oscillate with the same frequency and a greater displacement than the other cubes, thus showing resonance.

Historical References; Taken from original work of Percy H. Carr, 1970 

 “By starting with a frequency higher than that of the red masses and slowing down gradually to a stop, all three resonances can be seen clearly."

Video Demonstration

Tutorial: M: WM&S - 39
Transcript:

There are no spoken words with this recording.

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