Georgia State University
Georgia State University: Hyper Physics: Refraction of Sound
A discussion of refraction and its application to sound waves. Using analogies, graphics and real-life applications, this page and those that accompany it explain why and when sound waves bend.
Other
Easyphysics: Chapter 9 Sound
Learners investigate sound. Some topics examined are Doppler effect, interference of waves, and sound waves. The resource includes example problems with solutions and a chapter quiz.