AY1HomeworkforQuiz1:Spring2017
1. IftheEarth'sspinaxiswasnottiltedwithrespecttotheEarth'sorbitalplane
(aroundtheSun),whichofthefollowingwouldbetrue,whichfalse?
____Thenumberofdaylighthoursinadaywouldnotchangethroughtheyear.
____Thelengthofadaywouldincreasefrom24hoursto365days
____ThechangeofseasonswouldbecomemorepronouncedintheNorthern
Hemisphere.
____Therewouldbenochangeinthepatternoftheseasonscomparedtothereal
situation
2. Whattimedoesthenewmoonrise?Drawapicturetodemonstrateyour
answer.
3. Giventhatspeedoflight,c=300,000km/sec,howmanymilesarethereina
“lightminute”?
4. SupposeyoulivedontheMoonwherethereisessentiallynoatmosphere.
LabelthefollowingstatementsasTrue(T)orFalse(F)
____TheSunwouldappearreddercomparedtoasseenfromEarthduringthe
day
____Thecolorofthesky(lookingawayfromtheSunduringtheday)wouldbe
black
____Atsunsetonthemoon,theSunwouldappearredderthanitdoesatnoon
____The“greenflash”wouldbea“redflash”
5. Usescientificnotationtoexpressthefollowingnumbers.
A.
B.
C.
D.
6. HumanshavebeenpresentforapproximatelywhatfractionoftheEarth’s
history?
A.
B.
C.
D.
1000=
0.02=
1/2=
300,000=
90%
50%
1%
atinyfractionmuchlessthan0.0001%
7. Whataretheprimaryadvantagesofusingtelescopes(namethree)?
8. DayandnightonEartharedueto:
A. ThespinoftheEarthonitsaxis
B. ThetiltoftheEarth’sspinaxiswithrespecttoitsorbitalplanearoundthe
Sun
C. TheProclamationof1497
D. ThemotionoftheSunthroughspace
9. Whyisn’ttherealunareclipseeverymonthwhenthefullmoonpasses
throughtheEarth’sshadow?
10. Whatdoradiowavesandvisiblelightelectromagneticradiationhavein
commonandinwhatpropertiesdotheydiffer?
11. Whatcolorisayellowbananaslugilluminatedwithbluelight?
A.
B.
C.
D.
Yellow
Green
Blue
Black
12. Considera1-meter-radiuscoppersphereheatedto100Canda1-meter-radius
clayspherepaintedblackheatedto100C.Labelthefollowingtrue(T)or
false(F):
A. Thecopperspherewillproduceradiationatshorterwavelengths(higher
energies)
B. Thecopperspherewillproducemoretotalelectromagneticradiation
C. Thetwosphereswillproduceanelectromagneticspectrumthatis
identical
D. Thecopperspherewillproduceadistinctiveemission-linespectrum
13. Makeadiagramthatdemonstrates“retrogrademotion”ofMarsasseenfrom
Earth.
14. WhichofthefollowingarefoundintheSolarSystem?
___ asteroids
___ gas-giant planets
___ comets
___ planets
15. Theemission-linespectrumofeachelementshowsauniquepatternof
wavelengths.Whichofthefollowingstatementsbeststatestheunderlying
physicalreasonforthat?
___ Each element has a unique atomic weight
___ Each element has a unique set of electron “allowed” orbital levels
___ Each element travels at a different speed in a gas of a given temperature
___ Each element has a different number of neutrons in its nucleus
16. Ahotgasemitswhatkindofspectrum?
___ Absorption-line spectrum
___ Emission-line spectrum
___ Continuum
___ All of the above
17. Whyistherealmostnoatomichydrogenorheliumintheatmospheresofthe
innerfourplanetsintheSolarSystem?
18. WhyisthesurfaceofVenushotterthanthesurfaceofMercuryeventhough
MercuryismuchclosertotheSun?