Singing wine glasses

In this activity you will use a wine glass to make it sing.

Questions

1. How easy/hard was it to get the wine glass to sing?

2. What is this phenomenon called?

3. What has to be happening with your finger on the glass for the wine glass to sing? Why does dipping your finger in the water help?

4. Can you make the wine glass sing at any pitch? Why/why not?

5. How does changing the amount of water affect the sound?

6. What factors will effect the pitch and timbre of the sound?