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ASTR 5 Fall - 2006 Midterm

# ASTR 5 Fall - 2006 Midterm - we ’ r h" Name Astronomy...

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Unformatted text preview: we'- ’ r; h" Name: . . *' Astronomy 5 A 8C9 ho Life in the Universe Midterm You have 1 hour, 15 minutes to complete this exam. Calculators are permitted, but not necessary. Use the backs of these pages if you need more space. From each of the 3 sections, choose THREE questions (out of four). That’s a total of 9 questions. Some helpful formulae: Stefan-Boltzmann Law: L=41tR26T4 Newton’s Law of Gravity: F=GMmlR2 PHYSICAL PROBLEMS: 1) Explain, using the Stefan-Boltzmann Law, how red giant stars can be so luminous with such a low temperature and how white dwarf stars can be so hot but so dim. A; L/w ,2fﬂ‘TY P(‘ («£63115 (Gift 0. f‘wlttL (cwfr’ shahffrnfh’r fam- Vii-18 Jaszfvt/(Sv imminent, 1" Atygiulzai 0.x 5'?th m4 Hﬁ‘ﬂi‘fwg t‘k'tfrt’ﬁi’rlj Hc Ratiﬁcﬁvhmr. .‘f r v f": ._ a rm MN m t w; {c1 waif l Lu 2 I L -./ ' 3 him} (“’6 .20 {“htL "i U" ””7534 31,5“, 5.. (-55" (\$54?"ij LAW. [“7 in; “law? Aweﬁ a Maui: hijtr/ [mum/rt}. 2) If the mass of the sun is so much greater than the mass of the moon, then why does the moon have the biggest gravitational pull on the Earth? (Hint: think about [H1 l "” Newton’s Law of Gravity) , F’ on lLL( {-0.454 lam /L( Sit t1 Kt. 4M 415W A“ a ﬂi’ﬁnh’.’ fraud-am“) PL?” f . {.757 uL-«lr “:5 Moon ‘?) Fﬂ-WCL ( 020’. 43V” 6! 3- 11m": Ft?“ if? ' "I“ N4 [4w cf 5%!!th {ff/LC rﬁoffll (E) 5 (21%“! r Jr“ i (I (#5:; Ff i ": f ;_ fr, £13, ﬂlﬂjﬁﬂrf are?) LLQ Earl/1x 1% {ﬁg Anson IS arm-v, (lulu/Q pg»- fl - , n , f 1 ' '--‘ "- {Um 1‘ mpg/l /{0 P451? or ELI Eta/14h {1: {'LI 52.01". ,LL-( {n.(“f‘l‘ f‘ri‘HW "( I {1 mm (on p .r a 0/: Me (:2 WW 57 ”Earl f” #60”) «5 a "‘4‘" “5““ ”"' " ~WW 3) If the radius 0 the groan is U4 the radius of the and the mass of the moon is PM? (L. 1/80 the mass of the Earth, how much did Neil Armstrong (weight =150 lbs on the Earth) weigh on the moon? 11-: i . 9‘l .M 4) On (or around) the 4th of January the Earth is closest to the sun. At that time, does it />’,j\ 1/ move its fastest or slowest (or does its speed ever change at all)? Why? If. ‘ . an" I." ‘ ,-- r v C / 57 Hr mi a, at was, MM W; W? orM {WW . r ,,.“ 5;» PM 1‘: :7 C)“: €20.“ 011,65] [fl/Ur”; (JIMMY r, iIl/tf){ Wf. If v‘rlrf’ I! J-t‘r +[C ECU/LL {Wm/(S (NH! ”km it . l .- rafr/ ”(Sift/4r aim/M all“ a a Home it W’ “4“" ‘7 7”" ' ’ / ' ‘ U " ”‘4’ 0“! [4’ mt“ “w smegpfrn‘ 59 A-” ,7 are r I, S ((1 j“ l ~ { x f 5‘ "E mgr, (a; Lawn- :; <~ {5 (low J9 ﬁrm jam 7L3 nécﬁwﬂ f“ ,r 3" f/ (/7 '7 a‘ ' " l LIFE ON THE EARTH 5) Brieﬂy explain some of the reasons why we think that water is necessary for the formation of life. That is, what are some of its advantages over other possible cult»! (WWW? environments (like methane?) «r r c» i , ,‘ n 45 qu [\4, MM? [ppnfffrial Pmﬁguﬁ, (J {*0 H in. HMI W 5 I aid-{1H Poi” HLiwi' ES ,v'J' (m 56 PWV‘} a5 55%: {r‘ftdo‘ CM: jﬁl Chic [(1% SCIV‘HE zl';m{€'[LUé1P-r A065 ”a”; IS/(Ak ADV“ Oljﬂnfv gbaoI‘S-Ujm’l'fr «If: (m ﬁe Pfejf'hj." ﬂaer/lﬂhfl’x £011.? f/Mf/f #énn ail-(r [’j‘lr'l‘li‘ {if weft-{wa' 7A mill/ante}? Ag” E) {L1} (:1 facf‘ IC'JC Lijlh in §:.£!}onr( I!) [a Pdirnt a)" pl Fulﬁl [fl/n5 74- n Jfrﬂffr‘t‘ {9;2 FAfLFr. 76”“); [AA/4" ILLTL (5" LC -ﬂ((lfr./\} a; ”’1’”; gjj/f‘; a) [/51 “C ,1 (antﬂflrfll I" “(f/Lh/‘vt ﬂzd)o(_ Wt“ ﬁft/e {Yd {—(‘wg glfhr‘m“ L}Hl_ _ RR,“ 6 f _' (K, 6) Brieﬂy describe the Miller-Urey experiment. What did it show? TLC ﬂfllrwllrly (menu; ka HAM») 7mm MAL (if [M («ruled (am X Men, aJJEJ (MMMW all r‘rx a hop. ’[l inward/157px r’l”a./t‘(“!55/ Asia“? 5mm.” CUM; {[‘wm “MFR MOijk Moffrmlff. ”If rﬂoml pm r‘! ;: M7 #0 farm Famp/Fy 0‘2"“? ”40'6“”, (if? (r4 {“7 WLHR Hamid W; ”WV"? Ajﬂéw‘Ui/“J yq-W [FIE lo / +0 (((F‘K [mm 57"“‘P/C .Y‘D’jma‘r Wek‘fhlfﬁ‘, 7) What is meant by “convergence”? How has convergence been used as an argument for the presence of other intelligences in the Universe? f .‘. , v 4“ (0.me H {Li :nJirpc’nolrm (Mum M H or” “farm”. stir-:5 2n SOIL 5a!) m in-‘JJ. m'rgi m'utJ .‘nv‘5/(""/‘“’I'!' 0~ gmwlf .4 . i - . 1 . . ‘ -,. A ' j r‘ ,L (ls! “.{al‘ﬁ' {-c sit/y Simeon '2' WM, W'v’“ " t“ N’ “W ‘ f ’ :2 W; m We (x, Aux—«m 50) LL.“ who be»); [ff/[{f fu H; ' '[fh ,r fw‘jf, , :R F-AfFQFL/r; l7 [7 CID“ f; Ir;f:‘I/f_p{f ,v' 4) in...“ inf; f ﬁn CPLFK Fla-(«(55, (QLI‘ f A . (ipl‘ Jﬂi’: 8) Summarize Simpson’s critique of exobiologists and their deterministic views of the evolution of human intelligence. /"' / /. LIFE ON MARS 9) What did Schiaparelli mean when he said he observed “canali” on Mars? How did Percival Lowell interpret his results? frhiaﬂnrt’d? ”Wm; (WM) 6"} I5 WIN-i {fl 2.4M?” [NONI "(M iii (“”5le [Oi/“7”“ “I“? MMHJ I g“ (:4 1M“! fo( “a; ”tr/(“,1 On MW in with N align/(J My; if ram/1* m rm .9”? I/IW rm.” ”LIV“ [\Q‘ 17/ (Vii! " (r; (i: an}; Elf-ff ( l 3 LG (1’14 [{AJ [\t 511W gram/T}, (/f‘mflnfih ﬂuid cLLE/I 763).:05')?‘ [(gl F514)“; {I ({mIi {l' IIII firwf daft!“ £5! A? frlf/p/fpf'i (7U /fn ,{frg .; m {7; (f; I, .‘r f . . III (VIII! fag-"gr”; .. 1 (1/ .. N; a; Jerk/9n} m” m m/iHs'rr’ ”a”; /:I,r..1rr'{m-m1'~nUIf ?1“/“5( ((676; ' /fk( Wfﬁl‘lﬂ/ £7 a [ﬂ((, 0[ 1”“ [fir )F/{ rib; (“If“) -!i{l_ {Jim 10) In what ways is Mars similar to the Earth? How is it different? ”"1? .z-i. n. féﬁf ﬂ )lMl r'ﬂ/ aﬁl'ﬁl it”, ill“); (I ﬁll-“rift?! /-- .. 1 . r? I! Mjl'l—f 7;“ i7 ﬁ/f H{ (“(541) or; ”(it int/14’} magi”; (WK. fie a; :He ,t .. ’4 Fir ‘ 1.. (‘2; A MLEEL\ %["4'/Iﬂf/ ﬂfﬂﬁbjﬁhnﬂ/C Gin] {inf {3" {ﬁ‘i' {5611 4.4‘ if {KID (3" *6”; fmfﬁﬁ; £1“th {55" pref/{MP} {k'fﬁgf ﬂ” £-r?77 If/rf,a,{,;r 1'.- ,-"_ fi/‘fﬂfi ! (null no} /( Valium;- F. Hth {'61 2 .g/p/(rnp/S [\DVC Pula/ rff p? C I t ,‘ Maj (61ft (Hag Nil Mir ff.“ '7 {fa-j a/i MAM ﬂ/In.) [M‘IW' 5 “- .1. ,I . {HM chi! [NW1 h L}! H” n} HES}! (“E '4 [5 G x ("ml fr! at" l L' H 6’)” w Me Zia/111.. wt A“) w n .. . 1 Li. . Jrlrm f"""'-“" . “ M. -' " .14, ' (-5.: W -(_ . II I .1» I .S 0 5D in! in R' 1H\ [We (5“‘*'('€M'F (r a M “I m gnaw i“ h m m imp- M's C’ m ”Alton/xvii: , . , . r, - “(H :31“; Mt-l (fift‘l, a“) /"“1L’ Md“! slimy”) 466/ a(‘ «PMW ‘U (1," w “t -|r~. 11: m'. \\L ”tu'lrprc J PFP'H“ b? Milt-l (1M1 un’ ‘15 / (3 it; 51:35}: a iuﬂL‘f ti jl'i'ilf-{I 1b III IIIu: II.1I fIIIII-_.II,_I..II,I gag-LI /?/4AF1£‘) [LEW-M? 3' 3%, “5‘4"" H MI W /’l"”ﬂ‘u{l’t} mil, fﬂj/rh 10 [0 11)Discuss the possible presence of liquid water on Mars today and in the past. 12) What were the Viking missions? What conclusions were made from their data? 7M UAR?) 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ASTR 5 Fall - 2006 Midterm - we ’ r h" Name Astronomy...

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