Chapter1 - SAMPLE TEST CHAPTER 1 1) Special relativity...

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SAMPLE TEST CHAPTER 1 1) Special relativity suggests: a) E = mc 2 , b) time changes with speed, c) the velocity of light is the same in all references, d) our mass goes to infinity as we approach the speed of light, e) all of the above. E 2) Allan Sandage, Wendy Freedman, and John Huchra are all attempting to measure the _____________________ from the Hubble constant. Cepheids 3) The actual amount of light a star radiates and the distance a star is from the earth is called the ______________ _____________. 4) A neutron spontaneously decays when it is not in the ______________ of an atom. 5) Antiuniverses could exist and would be filled with antimatter. T F 6) Arno Penzias and Robert Wilson discovered a) white light, b) electricity, c) supernovas, d) the background radiation, e) the Andromeda strain. 7) The proportionality constant between the velocity of light and the distance of a galaxy from earth is called the ______________ constant. 8) Some stars appear to be moving away from earth at up to 1,000 kilometers per second. T F 9) A spectrograph consists of: a) a fine slit, b) a diffraction grating, c) a sensor, d) a and b, e) all of the above. 10) The fact that the night sky is not as bright as day: a) is called the Olbers’ Paradox,, b) is due to the fact that we can only see light that has had time to reach us, c) is related to the age of our universe and that the night sky should become brighter with time, d) is due to the fact that you are looking back into time before the stars were formed in certain sections of the sky, e) all of the above. 11) The farther out into space we look, the further back in ____________ we go. 12) The ratio of the nucleons to the number of photons and ____________ present now gives us an idea of how many nucleons escaped destruction during the Big Bang.
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Chapter1 - SAMPLE TEST CHAPTER 1 1) Special relativity...

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