Two Tuning Forks Share a Note

The second fork continues sounding. Ask students to predict what will happen. Strike one fork, bring it near the second, then damp the first. Key idea: A matching frequency transfers energy efficiently through the air. Ask: How did the second fork start vibrating? Safety and cleanup: Teacher handles tuning forks. https://www.google.com/search?q=%22Two%20Tuning%20Forks%20Share%20a%20Note%22%20science%20demonstration%20experiment