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Interactively explore the timeline of the universe.
A short film explaining the Doppler effect in simple, easy to understand terms. Nominated for the SciCast competition.
An explanation of the Doppler effect, which occurs whenever the source of waves (eg sound) is moving with respect to an observer.
Java applet (part of a wider site) which illustrates the Doppler effect for sound, giving the example of a passing ambulance siren.
A short and simple explanation of the Doppler effect.
A good clear explanation of the Doppler Effect with diagrams.
The student can study the effect on distance and time of altering the kinetic energy and mass of a sphere. Results could be plotted onto a spreadsheet.
Various applets allowing results to be taken for demonstration purposes.
A Marvin and Milo activity about doppler effect. All you need is a buzzing egg timer, sticky tape and a piece of string about 1m long.
A fun toy that lets you build a sledge run and then test it out. You'll need a good feel for the laws of motion to get results!
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