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Resonance and standing waves

Summary

When waves reflect from a boundary, the reflected wave can interfere with the incoming wave. If the frequency is just right, the waves will interfere constructively to create a standing wave. Standing waves are a form of resonance. Resonance preserves the energy of waves of certain frequencies while other frequencies damp out. The resonant frequencies are determined by the geometry of the resonant system. In this lesson you will use an interactive simulation to conduct an investigation of standing waves in a stretched string. The presentation concludes with a discussion of applications of resonance and standing waves in technology.
Resonance and standing waves

Student lesson materials


Investigation


Electronic resources