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Page 1 NS2-M3C17 - The Stars (Exam) Name:______________________________ 1 Which is longer one light year or one calendar year? A B C D 2 galactic cluster supernova nebula nova Term that describes the brightness of a star as compared to the brightness of the Sun A B C D 6 supernova nova exoplanet neutron star The Milky Way was once thought to be a(n) __________. A B C D 5 greater in mass; smaller whiter; cooler fainter; hotter brighter; smaller What is the most common “temporary star”? A B C D 4 calendar year light year neither they are the same White dwarfs are __________ than the Sun, but __________. A B C D 3 Date:_______________________________ Magnitude Apparent magnitude Luminosity Absolute magnitude A giant star, with five to eight times the mass of the Sun or more A B C D Red giant White giant Blue giant Purple giant NS2-M3C17 - The Stars (Exam) 7 Extremely dense stars that are formed when the core of a massive star undergoes gravitational collapse at the end of its life A B C D 8 A theoretical massive object, formed at the beginning of the universe or by the gravitational collapse of a star exploding as a supernova, whose gravitational field is so intense that no electromagnetic radiation can escape A B C D 9 Double stars Star clusters Parsec Neutron stars Galaxy distinguished by its distinct nucleus with one or more spiral arms A B C D 11 Black hole Galaxy White dwarf Habitable zone A large group of stars, drawn together due to gravitational attraction A B C D 10 Star clusters Neutron star Binaries Double star Irregular galaxy Ellipsoidal galaxy Spiral galaxy Extraterrestrial galaxy What is/are the determining factor(s) in what kind of a star will develop in a region of space? A B C D The The The The instability in the magnetic flux of space at that point. amount of gas and dust that is available. speed of rotation of the dust cloud distance of the star from the center of the galaxy Page 2 NS2-M3C17 - The Stars (Exam) 12 Why are most of the stars in the center of the Milky Way invisible to us on Earth? A B C D 13 What diagram is used by astronomers to group stars according to their color and their magnitude or stellar brightness? A B C D 14 Large, dim, small, bright Small, dim, large, bright Small, bright, large, dim Large, bright, small, dim What is the closest star to the Earth? A B C D 17 Outside of the Milky Way, in the Magellanic Cloud. In regions where there is little dust and gas. In the spiral arms of the Milky Way galaxy. In regions where there is a great deal of dust and gas. In general, blue stars are ______ and ______ while red stars are ________ and __________. A B C D 16 Spectrum-luminosity diagrams Main sequence diagrams Apparent magnitude diagrams Absolute magnitude diagrams Where are Population I stars located? A B C D 15 Because a black hole in the center of the galaxy prevents their light from escaping Because of the amount of gas and dust in the way They aren't invisible. They can be clearly seen with a telescope. None of the above Alpha Centauri Arcturus The Sun Proxima Centauri Which of the following is NOT a type of nebula? A B C D Bright nebula Dark nebula These are all types of nebula None of these are types of nebula Page 3 NS2-M3C17 - The Stars (Exam) 18 The Milky Way Galaxy is a(n) A B C D 19 Irregular galaxy Ellipsoidal galaxy Spiral galaxy Extraterrestrial galaxy Which of the following is NOT one of the kinds of nebulae observable in the visible light spectrum? A B C D 20 Page 4 Bright Nebula Planetary Nebula Dark Nebula Globular Nebula What are the leading indicators used to determine what kind of star will be "born?" A B C D The position and temperature of other nearby stars in the universe. Thermonuclear fusion products drawn from other stars. Gravitational attraction of nearby stars. Amount of gases and cosmic dust which it gathers in formative stages. Page 5 NS2-M3C17 - The Stars (Exam) Answer Key: NS2-M3C17 - The Stars (Exam) Question: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Answer C C B C C C B A B C B B A D D C C C D D