[Virginia Tech Department of Physics]

Lecture Demonstrations

Waves & Sound
   

W01: Tuning Forks with Resonators

 

Purpose: To demonstrate sounds produced by tuning forks including beats, and show that the sound is amplified when the tuning fork is                      attached to a resonator.

Description:

 

Two 256 Hz tuning forks mounted on resonator boxes, Rubber mallet, Clamp to change the frequency of one of the tuning forks.
  1. With the clamp removed, strike one of the tuning forks. Then, stop the first tuning fork from ringing and hear that the second tuning fork.
  2. Place the clamp on one of the tuning fork's tines. Strike both tuning forks and hear the beat frequency. Adjust the clamp position to increase or decrease the difference in the frequencies. The computer can also be used to display the sound patterns with a sound sensor (see W04).

Equipment List: Storage Location: Hahn N 130A

 

Tuning forks with resonators B2.1

References:

Manual: None

  Setup Notes: W01 PIRA #:
Manufacturer(s): Other school's Demonstration web pages

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