Practice Exam 1 Fall

# Practice Exam 1 Fall - AST101 Section M001 Our Corner of...

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AST101 Section M001: Our Corner of the Universe Exam 1: September 21, 2010 Test Form A Answer all of the following questions on the bubble sheet provided using a #2 pencil. Make sure that your Name, Student ID Number and test form letter are on the answer sheet and that all answers are recorded in the correct position. ALWAYS SELECT THE BEST ANSWER. Each question is worth 1 point. This is a closed-book, closed-note exam and you have the duration of class to complete it. If you have questions, please raise your hand. You are not to talk to or attempt to obtain answers from other students for any reason. Be sure to write and bubble in your ID number and test form letter. DO NOT START THE EXAM UNTIL YOU ARE TOLD TO DO SO! 1

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Exam 1 AST101.M001 Fall 2010 2 Choose the best answer from those provided. All questions are worth 1 point. 1. Which of the following rankings is correct for the size (diameter) of the following objects from smallest to largest? (a) star, planet, solar system, galaxy, universe (b) planet, star, galaxy, solar system, universe (c) solar system, planet, star galaxy universe (d) planet, star, solar system, galaxy, universe (e) star, solar system, planet, galaxy, universe 2. 1 A.U. (1 Astronomical Unit) is: (a) any planet’s average distance from the Sun. (b) Earth’s average distance from the Sun. (c) any large astronomical distance. 3. The star Betelgeuse is about 425 light-years away. If it explodes tonight: (a) We’ll know because it will be brighter than the full Moon in the sky. (b) We’ll know because debris from the explosion will rain down on us from space. (c) We won’t know about it until 425 years from now. 4. Where is our solar system located within the Milky Way Galaxy? (a) Roughly halfway between the center and the edge of the visible disk of the galaxy (b) Very near the center of the galaxy (c) At the far edge of the galaxy’s visible disk 5. You are standing on Earth’s equator. Which way is Polaris, the North star? (a) on the northern horizon (b) 30 degrees up, due West (c) directly overhead (d) The answer depends on whether it’s winter or summer. (e) The answer depends on what time of day (or night) it is. Exam continues on next page
Exam 1 AST101.M001 Fall 2010 3 Use the drawings below to answer the next two questions, which show the motion of Stars A and B in the sky. 6. At what time will Star B be located high in the north-eastern sky?

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Practice Exam 1 Fall - AST101 Section M001 Our Corner of...

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