Exam%201 - 1 Astronomy 101.002 Hour Exam 1 Answers given in...

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1 Astronomy 101.002 Hour Exam 1 February 18, 2009 Answers given in Bold Face QUESTION 1: Which of the following is true for the speed of light in vacuum: a) Its value is always 300,000 cm/hr. b) Its measured value depends on the velocity of the observer. c) It is larger for red light than for blue light in vacuum. d) It is the same for all electromagnetic waves traveling in vacuum. e) It is larger for gamma rays than for microwaves in vacuum. QUESTION 2: Which of the following is most representative of the scientific method? a) It is aesthetically pleasing by current standards. b) Is uses physical ideas to explain phenomena. c) It contains a geometrical picture. d) Agrees with prevailing beliefs. e) It is testable by observations. QUESTION 3 : If the earth rotated on its axis twice as fast as it currently does, but its motion around the Sun stayed the same, then: a) The night would be twice as long. b) The night would be one half as long. c) The year would be one half as long. d) The year would be twice as long. e) The length of the day would be unchanged. QUESTION 4 : Which of the numbers below is the largest? a) 2.4 × 10 10 b) 5 × 10 11 c) 24,000,000,001 d) 2.4 × 10 -11 e) 8.9999 × 10 9 QUESTION 5 : Which of the following did Aristotle believe to be true? a) The planets have circular orbits around the sun. b) In the absence of air resistance, all objects fall to earth at the same rate. c) The planets have elliptical orbits around the sun. d) The stars on the celestial sphere revolve around the earth once a day. e) The earth rotates on its axis once a day. QUESTION 6 : Kepler’s Laws do NOT include the following: a) The planetary orbits around the sun are ellipses. b) A planet’s orbital speed increases as it gets closer to the sun. c) Planets close to the sun have shorter periods than planets further from the sun. d) The earth’s speed in orbit around the sun is the same throughout the year. e) The sun is at a focus of Jupiter’s elliptical orbit.
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2 QUESTION 7: At approximately what time of night would you expect to see a full moon highest in the sky? a) 6 pm. b) 9 pm. c) Midnight. d) 3 am. e) 6 am. QUESTION 8: Paris is about ¼ of the way around the earth from Albuquerque. On a night that people in Albuquerque see a first-quarter moon, people in Paris see: a) A new moon. b) A first-quarter moon. c) A half moon. d) A third-quarter moon. e) It depends on the time of night. QUESTION 9: The seasons on Earth occur primarily because a) The Earth rotates on its axis. b) The Earth’s axis is tilted with respect to the ecliptic. c) The Earth’s distance from the sun changes throughout the year. d) The Earth’s orbit is an ellipse. e) Kepler’s Third Law. QUESTION 10:
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This note was uploaded on 01/10/2011 for the course ASTR 101 taught by Professor Knight during the Winter '06 term at Bellevue College.

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Exam%201 - 1 Astronomy 101.002 Hour Exam 1 Answers given in...

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