Exam1 _ast101_spring2020.pdf - Test 1 AST 100-06 SC1-The...

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Test 1AST 100-06 SC1-The Sky and PlanetsFriday, February 28,2020• This exam contains 50 multiple choice questions, each worth 2 points.• Use the bubble sheet and completely fill in the appropriate bubble.• You may use a calculator if you wish. However, cell phones are not permitted for use in anyway.• This exam is worth a total of 100 points. Good Luck!!
1) The termobservable universerefers to
2) We cannot see a new moon in our sky because
3) Earth is farthest from the Sun in July and closest to the Sun in January. During which NorthernHemisphere season is Earth moving fastest in its orbit?
4) When Copernicus first created his Sun-centered model of the universe, it did not lead tosubstantially better predictions of planetary positions than the Ptolemaic model. Why not?A) Copernicus used perfect circles for the orbits of the planets.B) Copernicus placed the planets in the wrong order going outward from the Sun.C) Copernicus misjudged the distances between the planets.D) Copernicus placed the Sun at the center, but did not realize that the Moon orbits Earth.
5) What is the ecliptic plane?
B) the plane of Earth's equatorC) the plane of the Sun's equatorD) the plane of the Milky Way Galaxy6) Suppose you lived on the Moon. Which of the following would be true?
7) From shortest to longest wavelength, which of the following correctly orders the differentcategories of electromagnetic radiation?

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