WAVES AND OSCILLATIONS - WAVE MOTION - LONGITUDINAL PULSES AND WAVES NC State University Faculty Access

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Suspended Slinky
# 3B20.10


Description: Display propagation, reflection, interference, as well as a number of other longitudinal wave phenomena. Simply induce motion in the spiral spring using the wave exciters located at each end. To vary the frequency of the wave motion, slide the wave exciter masses up or down. The black spiral wave spring in front of the contrasting white cloth backdrop makes the demonstration easy for everyone to see.

Instructions:

Purchased/Built: purchased

Quant. in Demo Room: 1

Source: Central Scientific

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 09-15 Show longitudinal waves on a bifilar suspended slinky with paper flags every fifth coil.
Sutton S-39 A long helical spring suspended every few turns with a bifilar suspension. Directions for making the spring.
Freier and Anderson Sa-12 Compression pulses are sent along a hanging slinky.
Meiners 18-3.4 Time a longitudinal pulse and compare to calculated. ALSO normal mode.

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