WAVES AND OSCILLATIONS - WAVE MOTION - STANDING WAVES NC State University Faculty Access

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Melde's Vibrating (elastic) String
# 3B22.10


Description: A speaker drives an elastic rope. Vary the driving frequency by adjusting the signal generator. This will produce standing waves with up to six or seven antinodes. A strobe can be used.

Instructions:

Purchased/Built: purchased

Setup Time: 15 min

Quant. in Demo Room: 2

Source: Pasco Scientific

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 09-27 Three strings driven by the same driver have weights of 0.9:2:8 to produce the first, second, and third harmonics.
Sutton S-35 Use a length of white clothesline and a mechanical vibrator to generate standing waves.
Meiners 18-5.1 A string under tension is driven to show standing waves.
Meiners 18-7.1 A 3 m rubber tube with a variable speed drive and high intensity strobe.
Freier and Anderson Sa-9 A DC motor is driven at variable speeds to generate standing waves on an attached rope.

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