phys117-exam2-practice-solns

phys117-exam2-practice-solns - PHYS 117 Spring 06 General...

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PHYS 117 Spring 06 General Astronomy Exam #2 Solution Key INSTRUCTIONS: Fill out your personal information on the answer sheet provided. USE A PENCIL to mark your answers on the answer sheet. The last page is the math problems; circle your answers on the last page. SHOW YOUR WORK for partial credit. You must turn in the last 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: ( 29 d M m I I p d J MT m AU D LD AD vt d V V m m B A A B 10 15 11 log 5 5 512 . 2 1 10 4 1 10 5 . 1 1 " 265 , 206 + - = - = = × = × = = = - o r H AU yr c V T E T kg m mc E a P s m c λ σ = × = = × = × = = = × = - - 8 4 6 max 27 2 3 2 8 10 67 . 5 10 3 10 67 . 1 / 10 3
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PHYS 117 – General Astronomy Name _______________________ Exam #1 1. Which layer of the Sun lies between the Convective Zone and the Chromosphere? a. Corona b. Radiative c. Photosphere d. Core – the innermost layer, not between anything 2. In which solar layer are granules and Sunspots found? a. Chromosphere b. Photosphere c. Corona d. Radiative Zone – an internal layer, we cannot observe 3. Besides the core, what is the hottest layer of the Sun: a. Photosphere b. Chromosphere c. Corona d. Convective Zone 4. The visible light from the Sun comes from which PP-chain particle? a. neutrino b. positron c. α -particle d. γ -ray – this is electromagnetic radiation 5. The emission lines in the corona show atoms in highly ionized states, this is an indication of: a. Convection – seen in granules on photosphere b. magnetic field reconnection c. high temperature d. Zeeman effect – shows magnetic fields in Sunspots on photosphere 6. Rapid rotation, convection, and a conducting material are necessary for:
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This note was uploaded on 06/01/2008 for the course PHYS 117 taught by Professor Hendrick during the Spring '08 term at Millersville.

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phys117-exam2-practice-solns - PHYS 117 Spring 06 General...

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