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Students work with a real optical spectrum of a gamma ray burst afterglow taken at the Keck Observatory. They measure the shifts of spectral lines, deduce the velocity of the astronomical object, and then use Hubble's Law to get its distance. These activities reinforce basic physics concepts (light, the electromagnetic spectrum) and chemistry concepts (spectral lines, spectroscopy).

11th - 12th Science 6 Views 16 Downloads
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Lesson Plans
Instructional Strategies
Project-Based Learning
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