psc103 f97 exam1

Psc103 f97 exam1 - PHYSICAL salmon 103 ‘ EXAMI t ’ FALL94 ‘ 74 m'pointseacfl. of the question Give only one answer unless requested to give

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Unformatted text preview: PHYSICAL salmon 103 ‘ ' _ EXAMI - t ' ’ FALL94 . ' ‘ 74 m'pointseacfl.Beanietowriteyourletterselearlyintheblanktaotheleft of the question. Give only one answer unless requested to give more than one. Write a note in the left margin if you are that there is something wrong with or unfair about the question. I 1. matterinthe universe istfirkmatter? u...— a) 10-19% 1) 60-59%, The para-nag; t5 qua/V, D; b) 20 - 29% . ,_ ,3) 70 _ 79%. am it H'tfid‘krf c)30-39% h) 80-89% "Edi 40-49% . '. ' ' - @90- 99%- e) 50 - 59% -r ' £4 2. Attheendofits life thesun will become astellarremnantcalleda a) planetary nebula. e) pulsar. - - h) black hole. 0 white hole. (6)} white dwarf. - . -. . t - -- ..g)..black dwarf, d) neutron star; r A ‘3 X3. Which star system would probably give life the best chance to evolve cm a planet in that system? A single medium mass star. - A single massive star.- = . c) A double starwith two modem mas stars. d) A double star with a medium mass starand a low mass stat: C, l2x11..WhattypeofmotionoftheEaIthWiIlcausethestarVegatobedteWorthsWinthedistantfuwre. a) rotation on its axis e) period of its orbit . b revolution in its orbit around the sun D sidereai period of it rotation. recession of its axis ellipticity of its orbit ( 5. The answers given below are the magnitudes of stars. Which star is brightest? a) +4 b) 0 g -1 +2 6 Which year is not a leap year? a 1988 @1900 2000 d) 1996 \ L 7. Stars A and B have the same apparent magnitude, but star B has a brighter absolute magnitude than star A. Which statement is correct? ‘ 3) Stars A and B are the same distance from the earth. ' .4 b)StarAisfaitherfromtheearththanstarB. . _ g) c) StarBisfartherfrorntheeanhthanstarA. I d) We cannot tell anything about the distances of star A and star B from the information given. fl 8. A large iron meteorite;-sueh as the one you saw in recitation, is most likely. to be frbm a) a broken up asteroid. A _ b) a dead comet. ' c) a nearby body such as the Moon or Mars. d} the sun. The answers for questions 19 through 20 are to be taken from the following diagram of the elliptical orbit of a planet around the sun: e d 'f' fi 19. Where would the sun located in this diagram? "£4 20. Where in its orbit would the planet be moving most rapidly? The answers for questions 21 through 23 are: a) at sunset b) at sunrise c) at noon d) at midnight [1) 0 >61. When does the new moon rise? AMZ. When does the full moon rise? C, When does the first quarter moon rise? Theanswers f Or questions 24 thrOugh 25 are to be taken from the diagram below. The letters show positions of the planet Venus. . ' 'b @ ' ° ‘2‘"; 24. At which position would Venus appear almost full? ‘3 25. At which position would Venus appear like a quarter moon? The answers for questions 26 through 28 are: a) light seconds b) light minutes c) light hours d) light years e) millions of light years D $6. The distance to the nearest beyond our own sun is best expressed in PD M27. The distance to the nearest star, which is our sun, is best expressed in A 28. The distance to the moon is best expressed in The answers for questions 39 through 40 are: a) a white star b) a red star (2) a blue star (1) an orange star e) a green star C 39. Which star is the hottest? ‘ .E: 40. Which star does not exist? W Points are indicated in parenthesis. Write a word, or a number, or a sentence or two, or whatever is indicated. ‘ 41. (2) We have seen‘some young stars with protoplanemry disks around them; What constellation were these young starsln?--T*1/m Or iofl rm UNVE- CL ‘ ~ 42 a) (2) Draw a picture of how the sun looks during the annular part of an annular solar eclipse. ust w the sun itself (I don’t want an moon diagram). ‘ - “Ohé'mt ,— 1 /< .1: dSVNXc Mam b) (2) Explain why suchanect lsanannular eclipse ramerthan w" Wmfl {$93531 3am Hm; moo-n L3 too 'hr Mm ‘W garm' h) Covvqalflfielq lowdcm'th (m Orbil' of W 'moofl Cum/ma W Earls/1 '15, {,Htpficw i so W do he nq /1 Wm WXflCLVm ‘F‘o We moOn \jwig3f) 43. (3) Drawadiagmmre resentingatelesoope takingapicture or picmrestomeasurethepamllax of astar. Your diagram should w the sun, the earth. and the star. You should indicate the pomtion from which the picture or pictures shouldbe taken to get the most accurate results. ' ‘ «c c m: .. . ‘r' J ,Y. mnffmhw’ ['(w1{(-U‘h€ fygtflVU ._ thwmo‘ 4“) “ 3km“, parallax ti 4- F Ui ax he i a at i :4 L“: i at): m?- befiti‘ 3!. we {:3 2" +11 LXI/11.! hug " M Mammy flair; i___ 7:: ‘ 153,-; e365“ w 1”. L W V / 2 ‘ w I I ° ‘i‘ h - 2.. L. I g "2.51 i L} i ‘i gym” Qu‘ . (La 3; "2 win On “FMS ,f _ L ‘l‘U 6;" {Li M t. // Uri-'fit. \N (2) Draw the path of the two rays of light shown through this telescope. - Cl 1 .' Points are indicated in lparenthesis. Please try to write a clear answer or explanation using whatever knowledge you have on the su ject, and using the appropriate vocabulary. _.You should write complete sentences and use paragraphs if that seems appropriate. ' 51. (5) Let’s assume that you decide you would like to see (in person) a total lunar eclipse and a total solar eclipse. Explain clearly why you will have a much harder time seeing a total solar eclipse. You have in ‘i‘Ythi =..:r slat” i‘b JR, Ct. this}. “up” bJECOLLLSC (t-Liui'fl-é; TOW/ii .5 Dim if {iii-352$ HM. mugs} gram darkens CL Smcw”o..r£.i;i. oi Mu (cum ."t"‘rr: ml. oi Mamie; G Jamie-av fie-ii is: Aim iii-m hiss-i4: Cic- m UCLWV flat“ O'iWH-fimriwfi if)... [Ut’lCLk' (Hit-1:274 Ha tat ‘ ‘ ilhifil flit EKLViiig _auw-4,. ‘3 .4 ,iu xfi ' =~.,'~.«.._ .Wé g‘ Li" I- it i. Hi ‘Q‘Qltu‘; i." ._ .- -" L‘ ,1 {-glhf‘gi my”? AWL3W “a firm okCu/K tale 0 rm Wm Ccm . ‘ 939,30 mom/ct mock? m M are comet 09 m (gym is 0 good V‘an W. 11) MC a hated solar Calms CL mien mugs USMCKJW wasle .oHt/h ‘re CU‘WDWILX’ couflhq {CK PU‘SWa m‘c‘rm‘e "W Jhaflme‘ is Oflw Oulouvtk £60 mULUl (ICWSS: ’4 GUS 0‘“ fwmfi be (Mung W pCLH/L‘ DEL This ghadow so 3% m min} J‘ulCu" €.C|ifl¥€~ WV... : .ii. .. ' r W. Points in parenthesis. Show whatever calculations you do. even if the calculation is just an addition or a subtraction. I will giVe no credit for a bare answer with no work showing how you got it, even if the answer is correct. Be sure to indicate units with your answer. 52. ('3) A new minor planet (really a large asteroid in a fairly circular orbit) is determined to have a period of 3.0 years. Calculate the distance in miles to this minor planet P2:O\3 J iii-HO. (gov—.— ova J (Wm in 7 qo‘da 13 a 2} T H d mar/a / i. OL:( ) A“ 1 W. 7‘ :Lfi/x P r— d6 PSc 103, Test #2 Dr. Boone, 17 May 1995 ('5 1. 2. 3. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. . Type of seismic waves that cause the most damage are ,/ \V .4 Name The Sun's source of energy is the conversion of the element H: to iii; The next stage in the Sun's evolution will the In its final stage, the Sun will become a kfllflfi 'EThe Ileizbffii) _£'pf‘i’sza{l/_Xm__ (2 words) of a star is a number related to the total energy emitted by the star. star stage. __ star. If two stars are the same distance from us but star A has a m nitude of 3 and star B has a magnitude of -2, which star is brighter? 2 4 4. I X In #5 the brighter star emits llitimes more energy than the fainter star. The total energy a star emits depends on its 52’ [%€ ‘ and m.;,_21’,1:i(s{;, The type of seismic waves with the slowest speed are Type of seismic waves that pass through the Earth's core . If a 4 point earthquake on the Richter scale releases 1 unit of energy. {About how many units of energy would a 5 point earthquake release? 2Q The P-wave shadow zone tells of about the size of the Earth's Cali... 1x How many units of energy would an 6 point earthquake release? At about what depth do the deepest earthquakes occur? ' 2421’, Z m, ,4 Earthquakes don't occur below this depth because i111": flu cam 2-;-~--',e_u.-{{{weigh a{Juli-15‘.lamprey: rm 9 :‘r'v’cf bigwigs we; rm Name a place where two continental plates are converging. ‘ -“'."». 2‘ Name a place where two plates are diverging. hi4 I . "I Where is an ocean and a continental plate converging? ' Folded mountains are associated with 5; ig-"i, ’1 Because of isostacy, the mountains with the deepest roots are the 5;? " The relatively rigid outer layer of Earth is broken into about (1- plates. This rigid outer layer of the Earth is called the } lfljQfic’fl' 112%» .2; fr?" 4);? This rigid layer floats on a "softer" layer known as the As the Rockies erode away, what kind of geologic activity would you expect? :1: gym-7i Cl... I i :1 Le- new i ‘5' it”?! 5 lag. . .e V I can) as: 37 M» s—r aunt .2; 40 L ~ 26. What is the Mohorovicic Discontinuity (the .Moho)? Dre 1/ '31. What is an alpha ray? gaiznsplamsumaficmfi ‘-<_..;_ 25‘. Give an example of a place formed by a hot spot. mam Islayfls “‘4 {Vii/“fl ‘7 “like. mars“ 27. Iron cannot be Ikflgt’l if it is above the Curie temperature. . 28. South America and Africa began separating about 2m will years ago. 29. Usin paleomagnetism to stu y a lava flow, we can approximately determine the lfil u m a g 25 of the location when the lava flow formed. 30. Iron and _ "Qg-c".rrl”:;){ are two elements that can be magnetized. life 32- What is a beta ray? Iranian.itmfilfmflflcfimmmfiummm 33. Emission of _fifi (only) radiation will lower the atomic number by two. M +14: t-wc F Fae a W rats» 35. The half life of a radioactive element is 1 million years and you start with 400 grams of the element. After 4 million years, grams will be left. 36. C- X Cf“ l t ‘ 37. In a magnetic field, a charged particle moves on a [El 1 x shaped path. 38. The aurora produce type spectra. . \ Y ’ x: P“ #“i ‘"‘I34‘.,.)Ve believe the Earth's magnetic field is produced by " ~ ' i‘ "i" ” {147:}:‘54 C-..” atin cannot determine the age of coal because coal is m; Marga friend. 39. The youngest rock on the Atlantic Ocean bottom is located a 40. A mechanism that may drive the Earth's plate motion is ._,’ ’r‘taag"; 41. 200 million years ago there was one large continent called 42. Another name for a seismic sea wave is fjmgmu. ____ 43. The period of a typical seismic sea wave is about ' mt." {UL/t“; 44. Give an example of a terrane. __A:_lfl_£)éé£4 _______ ___ 45. fter emitting radiation, F‘s-62 will change to the element “IA 46. n recitation we found the half-life of Indium-116 was about “‘3‘ K 47. The age of the Earth is approximately A 48. We find the age of the Earth by measuring the age of Bria"; (UM fl 27 \J‘ 49. We think the Earth's center is composed of (2 Fl because: > ‘ In '- tl' li) “.1195 li.l.1:v" :‘ ’- " _-.,: .-.i ._lf\‘(l ’ ' r X- .ffl’ ,1 l ' .‘V “T ff Calculate how long the space shuttle would take to reach the nearest slam 4.3 ly- away. The space shuttle travels about 3.0 x 104_ki-lometers per hour. The speed of light is 3.0 x 105 kmls. a) (3) first figure out how many kilometers there axe in 4.3 1y. I Knox ‘— IODOM d“ 11y : OH-lux lo‘lkm Liam xiq-LWW‘Lah owes,» x w m (9K : (1+3) ( gxme law/S) fgwgd’fijvzq Wa)(uOm/h3(woym) : HUM 10%an b) (2) Now figure out how. long the space shuttle would take to travel that far. +2.4" ' U (M! 9f ‘L‘EL’S‘YEA z: 1% .00 "x 103 hr. \/ X :0” Run/hf, .1 Y EDU =2 166 gr C l - a »' liq 45. (3) Explain how astronomers know that dark matter must exist? bur W QVQY‘QfiiWM W' SWO! oUr s-Wt‘m mots’r [g3 (Lyn/a gins: goirmlfim‘s mum’s MM 5'“ Cami/10+ Sté. ,3 'W gm X 46. (3) What very important information about stars can astronomers learn from binary stars? 1km; (CLH taco. 1 wt in red? mag ii 11qu “up, ‘1‘? Li "'1 {Cit} E‘Jt'flt’L-‘ti / mug; {(15} Kit} 5 ,, :52; §Q.Jf’('li 1L4"! is, tJipp‘ril (7 {4}“. €- ‘ (“5ng EC imam. Also Simmer remnants ,, paxngmw 47. (2) Why doas nomers call black holes by that name? Ck,de WWW wf afigtei M can €JCCq/JQ h light— ing bl .‘ Bum. mommg, not even bi Cm giro/Lt bovlgpn oqE a blottwme i Com/LU Mr, Us \AAU \DUK (atomic. ‘ ' 48. Mention two pieces of evidence which indicate that a comet or asteroid hit the earth and caused the mass extinction 65 million years ago which wiped out the dinosaurs and many other species of plants and animals. \3 h0g0“) (WW-lg 9 mg as on 'W 00M tourm— a) crawl 100‘?qu w— r y; ‘0 «gr i i; a m e . TRUE, \S f CLYC YEW (U j? ‘---i‘-="_~’ 1"} i ( est / 30H poo/Hews M 'W ClOUUl \thar b)(2)T'l-\r_r€ aye-(t? (lift: at: g? if“: muff? “(Mfr “at, C(‘zi‘fli'it. / :19. 'Tfaj'sxpratn lily-we nonmagnet- atmosphere left. 4 q (3mm moors \s'o smut-mama .uutma 5mm moral ram is not swarq enough Lin-hold ow to 'i’mogphért WLH. .1 /3 X 50. Raisin bread dough is sometimes used as a model of the universe. / b) (2) What does the rising of the dough represent? rm expat; s: '2 " t‘ 5 ‘2 t. .< a) (2) What do the raisins represent? 1 \ 1C gas: tax 1€_ ""\ *r The answers for questions 29 through 32 are to taken f tom the drawing below showing possible positions of the moon. “.3 r , . a . r ‘1‘} xx ‘\\‘I:E\J ® Iva: j m L“: k r (tr/(LXLQVC I In" T kph—P" ‘2. __L: 29. full moon H 30. third quarter J; 31. waxing crescent _£q_ 32. waning gibbous The answers for questions 33 through 34 are be taken from the diagram below (sgp stands for south geographic pole, and the small arrow shows the directin of the Earth‘s motion in its orbit): b kw M“ _ Sgp M*_.....;—— —-—._..__-_- -“\WJ fa“ ' I-‘Sq. lbfl‘l‘ulf \N ‘ Q‘C a 5 o} 33‘ . go _ _ _ ‘~"D 0", \ ---_-‘_ I...- “ “fin-u- 2 . V, {A} d \f‘ H v V A _C:)(33. The Winter Solstice for the northern hennsphere. __D_ 34. The Vernal Equinox for the northern hemisphere. The answers for questions 35 through 38 are: a)Mars -d) Jupiter 3) Neptune b) Mercury e) Pluto h) Saturn <3 Venus f) Uranus _E2_ 35. This planet looks enough like the earth’s moon to fool people. / 36. This planet has gigantic volcanoes and a huge canyon large enough to reach across the __D, 37. This is the largest of the planets. ‘ . L 38. This planet has a runaway greenhouse effect, so its surface is very hot. 5 JJ' ' I *9. W11 do‘sunspotsappeardark? . {b a) Byecause they are a different gas than the surrounding gas. - Because they are cooler than the surrotmding- gas. . c Because they are hotter than the surrounding gas. ' . : , d) Because ma ctic fieldspreveiu some of the light from the sunspbt region from escaping, so the :sunspotslook rbut they reallyarenotdarket; . _ . . ' .- r ' A 10. If the color of the light from a nearby galaxy is shifted toward blue, this tells us that the galaxy is traveling toward-use . , . - r, the galaxy is traveling away from us. c) the galaxy has a larger than usual number of blue stars in it. B) l 1. When we talk about the size of a large telescope, such as a 5 meter telescope, what dimension are we talking about? a) The radius of the lens or mirror. The diameter of the lens or mirror. c The length of the telescopetnbe. 9.4 12. In what year will thenumber ofsunspots on the sun againbeatamaximnm? a) 1995 e) 2007 b) 1998 f) 2010 62002 - '. ' (1)2004 W6. "No points each. Give only one answer-unlesssequested to give more than one. Each answer may be used once, more than once, or not at all. a ‘ - The answers for questions 13 thmugh 16 are on the Hertzsprung v Russel diagram below: .e . _ surface tempemnue E- 13. Where are giant stars found? D 14. Which star on the main sequence would be brightest? A 15.._Which star on the main sequence would be coolest? W16. [Where would the sun be found on the main sequence? The answers for questions 17 through 18 are: i. a) full d) crescent 7 b} new ' e) gibbous " c) quarter 3 FEXI'}. The phase of the moon during a solar eclipse. A r, 1::- XIS. The phase of the moon during a lunar eclipse. ...
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This homework help was uploaded on 02/13/2008 for the course PSC 103 taught by Professor Staff during the Fall '97 term at Cal Poly.

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Psc103 f97 exam1 - PHYSICAL salmon 103 ‘ EXAMI t ’ FALL94 ‘ 74 m'pointseacfl. of the question Give only one answer unless requested to give

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