1) Suppose that in this experiment the temperature of the room had been lower. What effect would this have on the length of the resonating air column for each reading?

2) An observer measured an interval of 10 seconds between seeing a lightning flash and hearing the thunder. If the temperature of the air was 20oC, how far away was the source of sound?

3) What is the conclusion in the lab experiment "Standing Waves in Air Columns"? What was learned from it?