This versatile and intuitive experiment is easily mastered by middle school students yet is capable of performing sophisticated experiments that will challenge the most advanced young scientists. The Wiggler can create standing waves on a vibrating string or make a classic driven oscillator out of a simple mass on a spring. The ideas of wavelength, frequency, resonance, beats, natural frequency, interference, and many other phenomena become real for students. Math and science are woven into a tapestry with music, perception, and the musical scale. If disturbed from rest, a mass on a spring bobs up and down at its natural frequency.
All real objects have resonances, from musical instruments to bridges and buildings.
I for sonic interference experiments.