This clip investigates what happens when a wine glass is subjected to high amplitude sounds at a frequency similar to the natural frequency of the glass. The experiment is conducted in a special soundproofed chamber because of the harmful amplitude of the sound, using a strobe light to see movement in the glass.
- This clip is from:
- First broadcast:
- 17 May 2007
What stops the glass from breaking? Why does the experiment require a frequency similar to the natural frequency of the glass? What would happen if a different frequency was used? Encourage students to investigate and share their answers with the class. Use a signal generator and oscilloscope to carry out practical work to reinforce the ideas covered.