Midterm Practice Exam With Correct Answers
Midterm Practice Exam With Correct Answers ASTR 115
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This 10 page Study Guide was uploaded by amanda Notetaker on Thursday October 15, 2015. The Study Guide belongs to ASTR 115 at San Francisco State University taught by Julio Magalhaes in Spring2015. Since its upload, it has received 133 views. For similar materials see Intro to Astronomy in Astronomy at San Francisco State University.
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Date Created: 10/15/15
From Amanda Majlessi amandamajlessigmailcom Subject Date October 15 2015 at 557 PM To amandamajlessigmailcom x xv NAME signed 15qu 5 v k 1 Which of the following rankings is correct for the size width of the following objects from West a star planet solar system galaxy universe nillm bo Planet Star galaxy solar system universe e solar system Planet star galaxy universe Kidding stat galaxy 3 star solar system planet galaxy Inverse 2 Whichgfthsfollowing correctly ranks locations fragH quotafquotthe Sup the edge creme solar39sysem mg Alphavaa near side of Andromeda Galaxy 39 39 g b file Alpha Centauri the sud edge of our solar system near srde of Andromeda Gal far edge of Milky Way galaxy k the 2 of our solar system the Sun the star Alpha Centaun far edge of Milky Way 39 galaxy near side of Andromeda Galaxy d the Sun the star Alpha Centauri edge of our solar system 39 Galaxy far edge of Milky Way galaxy l rvquotquot3 near side of Andromeda 6 star Alpha Centauri near side of Andromeda e the Sun the edge of our solar system th Galaxy far edge of Milky Way galaxy From Amanda Majlessi amandamajlessigmailcom Subject Date October 15 2015 at 557 PM To amandamajlessigmailcom x xv NAME signed 15qu 5 v k 1 Which of the following rankings is correct for the size width of the following objects from West a star planet solar system galaxy universe nillm bo Planet Star galaxy solar system universe e solar system Planet star galaxy universe Kidding stat galaxy 3 star solar system planet galaxy Inverse 2 Whichgfthsfollowing correctly ranks locations fragH quotafquotthe Sup the edge creme solar39sysem mg Alphavaa near side of Andromeda Galaxy 39 39 g b file Alpha Centauri the sud edge of our solar system near srde of Andromeda Gal far edge of Milky Way galaxy k the 2 of our solar system the Sun the star Alpha Centaun far edge of Milky Way 39 galaxy near side of Andromeda Galaxy d the Sun the star Alpha Centauri edge of our solar system 39 Galaxy far edge of Milky Way galaxy l rvquotquot3 near side of Andromeda 6 star Alpha Centauri near side of Andromeda e the Sun the edge of our solar system th Galaxy far edge of Milky Way galaxy From Amanda Majlessi amandamajlessigmailcom Subject Date October 15 2015 at 558 PM To amandamajlessigmailcom E w a What mm 3 Light takes approximately one second to travel from the Earth 1131 112 that the m 10 aPProzdmately express this distance between the in W speed of light is 300000 kilometers per second j m a l astronomical unit from the Earth the M 39 mm c 3000 kilometers 39om the Earth d 300000 kilometers om the Earth 6 twice the distance from the Earth to the Sun 4 Which statements correctly locate the formation of the Earth and the O heg m humans on the cosmic calendar which compresses the l4billion year history gtme waver into one quotyearquot where quotnowquot is exactly midnight Dec 31 a Earth forms in early September life begins in November and humans appear 01 Pc Eatthiommanuary lifqpsgmsia spt mben and 1 quotii c Earth forms in eam fanber life begins 519 Septem gkhqumans appear a few hams beforernidnigtLDeellL quot 39quotquotWWW M a d Earth forms in January life begins in April and humans appear in early December o w Decli 5 An astronomical unit AU is m Wama ghttxegm c the current distance between the Sun and the nearest star Alpha Centami d the average distance between any planet and the Sun Which of the following has your quotcosmic addressquot in the correct order 7 W universe anGalaxy Local Group Local Supercluster universe upercluster solar system Milky Way G ixy umverse d You Barth solar system Local Group Milky Way Galaxy Local Supercluster universe e You Earth Milky Way Galaxy solar system Local Group Local Supercluster universe 6 7 In lecture and in the textbook the idea that we are quotstar stu was introduced In what sense v are we star stu V 39 a The overall chemical composition of our bodies is about the same asthat of 7 v v b Movie stars and otherpeople are all made of the same sun so Weallhave the d tobefampus 39 i ey atoms essential for our bodies were produced inside of stars 0 l We not survive withdut light from our star the Sun 8 B C 39 a mkatan ebie t39t ati8LOGOthtyeais Wayneseen I 39 100039yearsago z 39 gifas39itiwas1000vlightyears ago I a esitis ghtpovg but 1000 tiniesr39 39 39 39 r y 39 titanic 39 V 39 39p j y r 10 What do astronomers mean by a constellation a A constellation is a region in the sky as seen from Earth A constellation is a group of stars related through an ancient story c A constellation is any random grouping of stars in the sky I d A constellation is a group of stars that are all located in about the same place in space 11 t is the celestial Sphere e w39 lt a he celestial sphere is a representation of how the entire sky lOOkS as Seen from Earth quot b The celestial sphere is a model that shows the true locations in space of the Sun and a lew I quot 3 thousand of the nearest stars c The celestial sphere is a model of how the stars are arranged 1n the sky relative to our Sun which is in the middle of the sphere d It represents a belief in an Earthcentered universe and hence IS no longer consrdered to have any use 12 What is a circumpolar star a a star that is close to the north celestial pole b a star that is close to the south celestial pole 0 star that always remains above your horizon J d a star that makes a daily circle around the celestial sphere e A star that is visible om the Arctic or Antarctic circles 13 You are standing on Earth39s equator Where in the sky is Polaris the North star fax a 30 degrees up from your northern horizon vii n your northern horizon c directly overhead at your zenith y d The answer depends on whether it39s winter or summer 6 The answer depends on what time of day or night it is 14 What is the ecliptic MW 3933 The Pathquotth 9 p ar mltacear6 ndIquotI e celestial sphere each yearquot quot9 T ti quot39fii quotsamp n 39 daiiy path from east to west in our sky I c The path traced by the Moon39s shadow on Earth during a solar eclipse d A halfcircle extending from your horizon due north through your zenith to your horizon due south 15 Which of the following statements is true about the location of the Sun at sunrise during the middle of winter a The Sun will rise north of East b The massagirggnnitge East Camiuammemu m isab d None of the above 16 If you are located in the continental US on the rst day of April how will the position of the Sun at high noon be different two weeks later a It will have moved toward the North b It will have moved to a position higher in the sky I It will stav inthe same position Celestial Sphere Rolauon N btar B 4 g H 4 Celestial Sphere Rotation mmth r Use the gure above to answer questions 1721 17 Whatrdirectionisxtgobserver facing 39 a toward the Southquot b toward the North c towar 18 What direction would yogface lookltosee Star A when 394 21 toward the north the soutlfjc toward tl d toward the west e directly oiienhead 19 What direction would you face look to see Star B wher a toward the north b toward the south c towa 7 d toward the west 7directly overhead onzon 20 Which of the stars will set on n estern horizon L a bothStarAand StarB c neither Star A nor Star B a only Star B tion closer to the h 21 Approximate ow long will it take Star A to go from p A4 a 3 hours hours 0 9 hours d 12 how 22 Suppose you are facing north and you see the Big Dippe with North Star Polaris and the Little Dipper above it in six hoursl M w m a Gquot the ElEiBfZ PlErEEQ gt22919 92 A 39 l stmiix the same place below Polaris I quot c to the le of Polaris that is 90 degrees clockwise fr it directly above Polaris i I J n have mEJed to a p05 6 It Will have movedftQWard the West wi cf It Amanda Mailessi amandamajlessigmailcom From Subject October 15 2015 at 559 PM Date amandamajlessigmailcom To Use h v e drawmg below to answer questions 23 25 23 H39Wu could v noon on a 5 rmg the day the dmmg Shows What the sky would look like at I constellation wouldYyoue Sun 13 near the stars of the constellation Gemini Near which a Leo b C ELme un to be located at sunrise ancer Gemini Taurus e Pisces 24 Which 39 f yfgoconstellduon W1 be highest in the sky 6 hours after the time shown in the drawing kwW b Cancer c Gemini d Taurus e Pisces 2 39 39 39 5 Which constellation Will be highest in the skim w lmonth later 2 a Leo 39 A Cdnfer c Gemini d Taurus e Pisces un no r t Gemini Cancer Taurus m m Pisces 2 has South West 9 Use the drawing below to answer questions 2628 This drawing shows the Earth orbiting the Sn 39 39 o shownn with 4 posmous in Earth39grorhitlaheled Four background constellations are also r Fall Sky Aquatius I i A 27 At which of the labeled points alonl M at 39dnight B c D 28 At which of the labeled points alom constellation Scorpius gy A B c a 29 Which of the following statements solar day and the length of the side a There is no difference c The solar day is about 4 minute 30 On which of the following days at l I locations outside the Tropics J a Winter Solstice b Spring eq 31 Looking at the drawing below wl States 2 Sunligi 6 E i Note this drawing is not to scale In fact 3 32 How does Earth39s varying distance 1 67h doesn39t Earth39s orbital distance 1 It makes summer warmer in the I c Itis responsible for the fact that 1 hemispheres d It causes the seasons to be more the Sun were always the same I l 39ch of the followingbcstdescrilj A A ei lt of arth swdscausesdi 39 g1 sm ghtwdi memvnmesvofyea 1 A 1 elliptical erbitmeans g Earth39s orbit will the const ua WMQ bgyg im g Earth39s orbit will the sun appeartnhefih the best describes the di 39eren39 ice the of real star day 39 p Lil The sidereal day is about4 s s orter d The difference cannot be 2 ago noon is the Sun at its highest location in whim p L 7 1ianquot c Summer gi d Fall Eqmnox N tich letter A E best represents winter in the United it Sunlight rou could t more than I l000 Earths between the Sun and Earth from the Sun affect our seasons 5 plays no signi cant role in the seasons Northern Hemisphere than in the Southern Hemisphere the seasons are opposite in the Northern and Southern v extreme than they would be if the Earth39s distance from 198 Why we have seasons on Earth scion portioiis of the Earth to receive more or less direct clasertothe and therefore receive A northernhemisphereto heeloser to the Sun the aandyiSaVersainwinter H whittled gives ns when ate 1 moving slowest Q oi the Moon39s phase rquot M quotquot a tits qmrter b third quarter c full who 3 3 It s 0 am and the Moon is at its highest point in your sky crossing the meridian What is k d new Sf 35 Which phase of the Moon rises in the east as th A ts in the west a szing crescent b V aning gibbous Full d Third quarter e New 36 Which oi the tbllmving best describes why the Moon goes through phases a Earth39s shadow falls on di crent parts ot the Moon at different times h The Moon is somewhat attened and disklike and appears more or less round depending pm the precise angle from which we see it c We see only part ot the lit up face of the Moon depending on its position relative to Earth and the Sun d The sunlight re ected from Earth lights up the Moon but is less effective when the M00 18 lower in the sky than when it is higher in the sky 37 Lunar eclipses can occur only during a ecliptic b a New moon when the Moon s orbit takes it close to the v v 1 b First quarter moon q Full moon i d Third quarter moon r f 3839 80131quot fidipses can occur only dining 8 when the Moon39s orbit takes it close to the 89 c b Flm Quarter moon Bull moon d Third quarter moon 39 A Planet is moving with retrograde motion bver the course of several days how will the planet appear to move relative to the background stars Kb c not move at all d move randomly 40 if Mars were moving with retrograde motion tonite how would it appear to move across the Skydur ngihwg immm r AsemtheEastampsetindieW b RiseintheWestampsetintheEast c uonary in d Never rise 4 How did the geocentn c model explain the apparent retrograde motion of the planets a The planets resided on giant spheres that sometimes turned clockwise and sometimes turned counterclockwise C b The model showed that apparent retrograde motion occurs as Earth passes by another 39 planet in its orbit ofthe Sun The planets moved along small circles that moved on larger circles around the Earth d The planets sometimes stopped moving and then reversed to move backward along their circular orbits 39 A 42 Which ofthe following astronomers rst proposed the heliocentric model of the solar gym amp muewm b Claudius Ptolemy c Tycho Brake tcholas Copernicus a trogmdemotion ofplanetsinthe mummies is that Sunmove39 tsterandome Sunquot 1 a c nquotplanetsmoveonsma crcimles ledeprcyceswm39e ieyor39irt osun plants farther from the Sun mOVe overtakethose39closer to AA 7
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