Wave Properties II

Glencoe Virtual Wave Lab:
http://www.glencoe.com/sites/common_assets/science/virtual_labs/E05/E05.html

PhET Sound Simulator:

http://phet.colorado.edu/en/simulation/sound

PhET Wave Interference Simulator:

http://phet.colorado.edu/en/simulation/wave-interference

EduMedia Transverse Electromagnetic Wave:

http://www.edumedia-sciences.com/en/a185-transverse-electromagnetic-wave