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Thursday, 19 June 2014 14:32

H3-11: TUNING FORKS AND RESONANT TUBE

Additional Info

  • ID Code: H3-11
  • Purpose: Illustrate resonance in an air column.
  • Description:
    This demonstration includes a clear plastic tube and two tuning forks, of slightly different frequencies.

    Strike either tuning fork and hold it to the end of the tube. The sound intensity of the fork at the resonant frequency (480Hz) of the tube increases dramatically, as the second harmonic of the tube is excited; whereas the fork with the non-resonant frequency (384Hz) does not become significantly louder.

    Background

    This illustrates the principle of resonance. One tuning fork's frequency is a multiple of the natural frequency of the air column in the tube, while the other is not.


  • Availability: Available
  • Loc codes: H3
Read 2180 times Last modified on Monday, 21 June 2021 15:07
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