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Unformatted text preview: Phys133 SAMPLE questions for MidTerm#1 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is largest? A) 1 light- year B) size of Pluto's orbit C) size of a typical galaxy D) distance to the nearest star (other than our Sun) 1) 2) What is an astronomical unit ? A) the average speed of the earth around the Sun B) any basic unit used in astronomy C) the length of time it takes the earth to revolve around the Sun D) the average distance from the earth to the Sun E) the diameter of the earth's orbit around the Sun 2) 3) Roughly how many stars are in the Milky Way Galaxy? A) 100 million B) 100 trillion C) 1 billion D) 100 billion E) 10 billion 3) 4) Suppose you live on the Moon. How long is a day (i.e., from sunrise to sunrise)? A) a year B) 23 hours 56 minutes C) 24 hours D) about 18 years E) a lunar month 4) 5) What is a circumpolar star? A) a star that is visible from the Arctic or Antarctic circles B) a star that is close to the south celestial pole C) a star that always remains above your horizon D) a star that makes a daily circle around the celestial sphere E) a star that is close to the north celestial pole 5) 6) How can an electron in an atom lose energy to go from a higher energy level to a lower energy level? A) It loses gravitational potential energy. B) It absorbs a photon equal in energy to its own energy drop. C) It exchanges gravitational potential energy for kinetic energy. D) It releases a photon equal in energy to its own energy drop. E) It loses kinetic energy. 6) 1 Name___________________________________ 7) When someone on the earth observes the Moon in the frst- quarter phase, someone on the Moon Facing the earth observes the earth in the A) frst- quarter Earth phase. B) third- quarter Earth phase. C) Full Earth phase. D) crescent Earth phase. E) new Earth phase. 7) 8) What do the structures oF Stonehenge, the Templo Mayor, the Sun Dagger, and the Big Horn Medicine Wheel all have in common? A) They all can be used as lunar calendars. B) They were all built on the orders oF ancient kings. C) They were all used by ancient peoples For astronomical observations. D) They were all places used For religious sacrifce. E) all oF the above 8) 9) Astronomers inFer that the universe is expanding because distant galaxies all appear to A) be growing in size. B) be made oF dark matter. C) be moving away From us, with more distant ones moving Faster. D) rotate rapidly. 9) 10) Earth is Farthest From the Sun in July and closest to the Sun in January. During which northern hemisphere season is Earth moving Fastest in its orbit? A) winter B) summer C) Fall D) spring 10) 11) Where is our solar system located within the Milky Way Galaxy?...
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This note was uploaded on 02/01/2012 for the course PHYS 133 taught by Professor Staff during the Fall '08 term at University of Delaware.
- Fall '08