K. Constant Spring Apparatus PSAW |
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| K. Constant Spring Apparatus PSAW
(1244 ) |
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If one end of a long flat spiral spring is fixed and the lower end is pulled by a short jerk and released, longitudinal waves are produced. The apparatus consists of a spiral spring about 25 mm dia and 10 cm length. The upper end of the spring is suspended from a chucknut and the lower end is provided with a small pointer which moves over a vertical wooden meter scale. The lower end is also provided with hook for carrying weights. All this set up is provided on a heavy metal base, supplied with weights.
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