Waves

Doppler Effect Activity - [ Mature Teens ] - 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.

Doppler Effect Demonstration - [ Teens ] - A Java applet showing the how wave fronts cause the effect.

Doppler Radar is a Key Forecasting Tool - [ Mature Teens ] - Find out how the Doppler effect is used to read the weather, and how it can be used in short term weather prediction.

How Wave Pools Work - [ Teens/Mature Teens ] - Explains a variety of concepts related to making waves in water.

Longitudinal Wave Activity - [ Teens ] - See how the particles move, and the graphs for acceleration, velocity and displacement when the sound frequency is changed in this activity.

Radio Transmission - [ Kids ] - Learn about the different stages of radio transmission, how radio waves are emitted, and the difference between AM and FM radio.

Wave Parts - [ Teens/Mature Teens ] - A diagram of a wave, with labeled parts. Includes an interactive window in which the user can change the frequency of the wave.