SCIENCE 101 > EXAM > GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law 2021 (All)
GIZMOS Student Exploration: Big Bang Theory – Hubble’s Law 2021 Vocabulary: absolute brightness, absorption spectrum, apparent brightness, Big Bang theory, blueshift, Cepheid variable, Doppler ... shift, Hubble constant, Hubble’s law, luminosity, megaparsec, period, redshift, spectrograph Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Standing by the side of a lonely highway at night, you see two motorcycle headlights, one in each direction. The headlight on your left appears brighter than the one on your right. 1. If the headlights are equally bright, which motorcycle is closer? The one on the left side Explain: If it is brighter than that means its going to be closer because the light particles are traveling less and there is more. 2. Suppose the dim-looking headlight on the right is actually a small light on the front of a bicycle. What can you conclude about the distance of the motorcycle and bicycle? If I know the light source is smaller, then the bicycle is closer than it is shown. Gizmo Warm-up In 1912, an astronomer named H............................................CONTINUED [Show More]
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