What happens when two mounted tuning forks sound at the same frequency? At slightly different frequencies?
Your students explore this fascinating concept with a set of two resonance boxes topped by extra-heavy Duratone® brushed aluminum forks. They more than double the duration of audible vibration.
One fork is weighted, so you can adjust it over a range of about 30 Hz.
To make matters more interesting, the forks are different lengths: 19.4cm vs. 17.5cm.
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