The graphs below are excerpted from Volume 1 of Where Does Sound Come From?, as well as a free pamphlet from the publisher. These graphs show graphs of sound pressure which result from a person singing "ah."
Discussion Questions
- Describe at least 2 differences between these two graphs.
- What types of information are contained in each graph?
- If possible, identify the frequency, wavelength, and/or amplitude of the wave in each graph.
- Is it possible to determine the pitch of the note from either graph? If so, how?
- Is it possible to determine the sound level (decibels) of the note from either graph? If so, how?
- Which graph is more accurate?
- Which graph is more useful?