solns-practice-exam1

solns-practice-exam1 - PHYS 117 General Astronomy Solutions...

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PHYS 117 General Astronomy Solutions Key Exam #1 INSTRUCTIONS: Fill out your personal information on the answer sheet provided. USE A PENCIL. The last page is the math problems. SHOW YOUR WORK for partial credit. You must turn in this page with your answer sheet. KEY NOTES: Bold – correct answer , Italics – really wrong answer , for some answer choices I have included an explanation of what the right/wrong choices mean. Equations you may need: D LD AD F F M D D D LGP LGP R d vt d c f e o B A B A = = = = = = = = " 265 , 206 6 . 11 14 . 3 2 2 α π λ o r AU yr c V T T E mc E a P s m c σ = × = = = = × = × = - 6 max 4 2 3 2 8 8 10 3 10 67 . 5 / 10 3
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PHYS 117 – General Astronomy Name _______________________ Exam #1 1. a. 18 h , 0 o b. 6 h , -23.5 o c. 0 h , 23.5 o d. 18 h , -23.5 o 2. Which of the following is NOT an asterism? a. Big Dipper b. Great Square c. Ursa Minor –This is a constellation d. Northern Cross 3. The ecliptic is: a. The apparent path of the Sun in the sky b. Where we can find all the zodiac constellations c. Tilted 23.5 o from the Celestial Equator d. All of the above 4. When you are standing at the Earth’s North Pole, what is the altitude of the North Celestial Pole? a. 45 o b. 90 o Altitude of NCP is your latitude on Earth c. Impossible to tell d. 0 o 5. Azimuth is defined as: a. Angle above the horizon This is Altitude b. Angle above, or below, the Celestial Equator – This is Declination c. Angle measured E of N point along the horizon d. The location of the meridian 6. Which of the following Moon’s phases are in correct order: a. 1 st Quarter, Waxing Gibbous, Full b. Waning Gibbous, 3
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solns-practice-exam1 - PHYS 117 General Astronomy Solutions...

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