PIRA: 7A50.40

 

 Lab Equipment  Directions
  1.  Pasco function generator
  2. Pasco mechanical vibrator
  3. circular wire
  4. 2 BB leads
  5. Overhead projector
  1.  Connect as shown. Position the vibrator so that the circular wire rests on the overhead projector table and can be seen completely.
  2. Set the function generator amplitude to not more than half scale before turning on.
  3. Adjust the generator frequency scale until you find a 3 node resonance. (approx. 20 Hz)
  4. Try other frequencies to obtain various resonance. (Try 60, 100, and 140 Hz)

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