Two Tuning Forks Share a Note
The second fork continues sounding.
Teaching & key ideas
What you do: Strike one fork, bring it near the second, then damp the first.
What students see: The second fork continues sounding.
Why it works: A matching frequency transfers energy efficiently through the air.
Question to ask: How did the second fork start vibrating?
Lesson flow
Predict → demonstrate → observe → briefly explain → ask: How did the second fork start vibrating?