Wave Parts
- A diagram of a wave, with labeled parts. Includes an interactive window in which the user can change the frequency of the wave.
- http://id.mind.net/~zona/mstm/physics/waves/partsOfAWave/waveParts.htm

Radio Transmission
- Learn about the different stages of radio transmission, how radio waves are emitted, and the difference between AM and FM radio.
- http://www.pbs.org/wgbh/aso/tryit/radio/#

Longitudinal Wave Activity
- See how the particles move, and the graphs for acceleration, velocity and displacement when the sound frequency is changed in this activity.
- http://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=32

How Wave Pools Work
- Explains a variety of concepts related to making waves in water.
- http://science.howstuffworks.com/wave-pool.htm

Doppler Radar is a Key Forecasting Tool
- Find out how the Doppler effect is used to read the weather, and how it can be used in short term weather prediction.
- http://www.usatoday.com/weather/wdoppler.htm

Doppler Effect Demonstration
- A Java applet showing the how wave fronts cause the effect.
- http://www.sciencejoywagon.com/physicszone/lesson/otherpub/wfendt/dopplerengl.htm

Doppler Effect Activity
- This shockwave activity shows the way that waves originate from a single moving source, and provides a link to the same activity using two sources.
- http://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=18