Episode 700: Preparation for Astronomy Topic

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From the Institute of Physics, these learning episodes act as an introduction to cosmology and ideas about the history of the Universe. Most students should have heard of the Big Bang and expanding Universe. This topic makes it all plausible and looks at the wave speed formula, diffraction by a grating and the electromagnetic spectrum.

In this section, there are two learning episodes: Episode 701: Observing stars and Episode 702: Red shift.

The topic gives students the opportunity to:

1. name different types of spectra.

2. describe the information which can be deduced from spectra.

3. understand how the Doppler effect can give rise to red and blue spectral shifts.

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