|Halliday, Resnick and Walker
FUNDAMENTALS OF PHYSICS 6/e
Chapter Seventeen: Waves I
Java Applets for High School Physics Education
by S.Kamikawa, high school Physics teacher in Japan.
A variety of simulations for Internet Explorer 3.0. These are simple but show the patterns of waves nicely:
Physics Java Applets
Fu-Kwun Hwang, National Taiwan University Department of Physics.
HRW 6/e Chapter Index