PracticePrelim1

PracticePrelim1 - A Astro 102 Spring 2008 Sample Prelim 1...

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A Astro 102 Spring 2008 Sample Prelim 1 Exam Name: Section Number: Name of TA: Instructions Read the instructions carefully before you begin, your grade may be penalized for failing to follow instructions. Do not begin until you are instructed to do so Exam is multiple choice, answer each question with the best single answer. Answer on the NCS Form 4521 that is provided Follow the instructions on the NCS Form 4521 for filling in the circles Complete your name, student identification, and section number in the special codes section on the Form 4521 Complete your name, section number and name of TA on this question sheet. No electronic equipment allowed. Exam is closed-book. Text/notes are not permitted. A formula sheet & physical constants are provided. Not everything on the formula sheet will be relevant or needed. Hint: do not go looking for a formula until you are sure what you are looking for. You may not leave in the last 15 minutes of the exam. Exam will start precisely at 11:20 am and finish precisely at 12:00 pm. There are 35 questions on the exam. You must turn in your question paper in addition to your NCS 4521 Form.
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Possibly useful equations: p 2 " M 1 + M 2 ( ) = a 3 F = ma E = mc 2 p 2 = a 3 " = s /2 # d ( ) $ 360 o E = T 4 max = 2.9 # 10 6 nm $ K T # 2.5 $ 10 5 % D F g = GM 1 M 2 r 2 f = c / E = hc / " = v c v esc = 2 GM r Possibly useful constants: c = 2.99 x 10 8 m/s h = 6.63 x 10 -34 J s ! = 5.67 x 10 -8 W/m 2 /K 4 G = 6.67 x 10 -11 m 2 /kg/s 2 g = 9.8 m/s 2
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ASTRO 102/104 Practice Prelim 1 Name___________________________________ Section__________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) This is version A of the exam. Please fill in (A). A) This is the CORRECT answer B) This is WRONG C) This is WRONG D) This is WRONG E) This is WRONG 1) 2) Given that one of the goals of Apollo 8 was to photograph the far side of the moon, what (roughly) was the phase of the moon when Apollo 8 reached orbit? A) Full B) Waxing Gibbous C) Third Quarter D) First Quarter E) New 2) 3) What happens during the apparent retrograde motion of a planet? A) The planet moves through constellations that are not part of the zodiac. B) The planet rises in the west and sets in the east. C) The planet appears to move eastward with respect to the stars over a period of many nights. D) The planet moves backward in its orbit around the Sun. E) The planet moves backward through the sky. 3) 4) If the earth suddenly didn’t have an atmosphere…. A) Water could not be liquid on its surface B) Earthquakes would immediately cease C) Damaging radiation would still be blocked by the ozone layer D) We would fly off the surface E) The sun would melt the surface 4) 5) Suppose you are an astronomer studying binary asteroids. If your radio telescope has a maximum resolution of 0.01 arcseconds and the binary that you are studying is 100,000,000 km away, how many kilometers (to the nearest order of magnitude) must separate the two components of the binary for you to resolve them?
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PracticePrelim1 - A Astro 102 Spring 2008 Sample Prelim 1...

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