Test
Beach astro final
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (105)
1One reason copernicus's theory of the solar system was a better scientific theory than ptolemy's theory is because...
- ACopernicus's theory is newer than Ptolemy's theory, and a newer theory is always better
- BCopernicus's model predicts that we should observe stellar parallax (ptolmys predicts that we should not), and astronomers do observe stellar parallax.
- CPtolemy's model of the solar system was accepted by the church in 1600, whereas the church was against Copernicus's model.
- DPtolemy's model does not include and explanation for retrograde motion of the planets.
2true or false, the largest optical telescopes on earth are refractors.
- AVerdadero
- BFalso
3In a telescope, the star alberio is seen as a double star including a dimmer blue star and a brighter yellow star. Which star is hotter.
- Ablue star
- Byellow star
- Cwe can't tell without knowing their distance
4The main function of an optical astronomical telescope is to
- Amake objects look bigger
- Bgather as much light as possible
- Cincrease the sharpness of an image
- Dseparate white light into its constituent colors
5on a day when mars rises in the southeast, in what direction will it set
- Asouthwest
- Bsoutheast
- Cnortheast
- Dnorthwest
6What kind of spectrum do you observe after passing a continuous spectrum through a cool, this gas
- Acontinuous plus bright lines
- Bbright line
- Cdark line
- Demission line
7our suns peak energy output occurs in what region of the electromagnetic spectrum
- Ainfrared radiation
- Bred colored light
- Cgreen-blue colored light
- Dultraviolet radiation
8which of these are types of ionzing radiation? CHECK ALL THAT APPLY
- Ainfrared rays
- Bgamma rays
- Cmicrowaves
- Dultra-long waves
- Ex-rays
9a partial lunar eclipse can only occur when the moon is in [blank_start]_[blank_end] phase
- Afull
10The zodiac band of constellations straddles the
- Acelestial equator
- Bhorizon
- Cmilky way
- Decliptic
- Ezenith
11Approximately what time would the waxing gibbous phase of the moon be highest overhead? [blank_start]-[blank_end]
- A9 pm
12what kind of spectrum do we see when we observe our sun?
- Abright line
- Bdark line
- Cemission line
- Dmaginot line
- Econtinuous
13The most important feature of a good scientific theory is that
- Athe theory must not predict any phenomena that have not been observed in the past
- Bthe predictions the theory makes must agree with observations
- Cthe theory must agree with all previous theories
- Dthe theory must work well for obtaining funding from the national science foundation
14if a star rises at 10:30 pm today (Thursday) what time will it rise TWO days later (on Saturday)
- A10:26
- B10:22
- C10:34
- D10:38
15compared to visible light, infrared radiation has... MARK TWO
- Alonger wavelength
- Bshorter wavelength
- Chigher energy photons
- Dlower energy photons
16mars in furthest from the sun when it is at
- Aperihelion
- Bapogee
- Cperigee
- Daphelion
17the solar system model made by Copernicus...
- Awas heliocentric
- Bwas centered on earth
- Cwas geocentric
- Dwas egocentric
18the radio receiver dishes of the VLA are spaced far apart to get
- Amore observing time on an object
- Bhigher magnification
- Cgreater radio wave length gathering area
- Dbetter resolution
19in the solar system model of _____, mars actually move backward in space (relative to its normal direction of motion) when it is doing its retrograde motion. it doesn't just appear to move backward as seen from earth in this model
- Anewton
- Bcopernicus
- Cptolemy
- Dgalileo
20What type of spectrum is given off by a hot, solid object, such as an incandescent light bulb filament? [blank_start]___[blank_end]
- Acontinuous
21True or false: the closer to the sun a planet orbits, the slower it moves.
- AVerdadero
- BFalso
22The two planets that never appear opposite in the sky from the sun are (CHOOSE TWO ANSWERS):
- Ajupiter
- Bmars
- Cmercury
- Dvenus
- Esaturn
- Fneptune
23The moon displays a complete cycle of phases in one...
- Asidereal month
- Belliptic month
- Csolar week
- Dsynodic month
24the method we use to determine the age of the earth is:
- Ameasuring earthquake rates
- Bradiometric dating
- Cocean salinity increases
- Datmosphere escape dating
25The first person to report observing the phases of Venus with a telescope was
- Atycho
- Bptolemy
- Cgalileo
- Dnewton
- Ehubble
26a telescope lens forms an image using the principles of
- Areflection
- Brefraction
- Cdispersion
- Ddiffraction
27a star that is close enough to Polaris that it never rises or sets is called
- Acircumpolar
- Bzodiacal
- Csynodical
- Dannular
28Very accurate naked-eye observations make by ____ allowed _____ to derive his three laws of planetary motion. (choose one set of names to fill the blanks)
- Anewton/keplar
- Bkeplar/newton
- Cnewton/galileo
- Dtycho/kepler
29How would the mass of an object differ when measured on the earth and on the moon
- Athe mass is greater on the moon
- Bthe ass is the same in both places
- Cthe mass is less on the moon
30Polaris was not the earth's pole star 10000 years ago, this is because of
- Aprecession
- Bobfuscation
- Cstellar parralax
- Dthe earth's magnetic field flips
31an atom which had an electron removed is called
- Aa neutron
- Ban isotope
- Can ion
- Da fusion particle
32there are two questions with images on test one that could not be entered. look at them on your own. Type YES if you understand. [blank_start]___[blank_end]
- AYes
33a necleus of an oxygen atom contains (mark all that apply)
- Aprotons
- Belectrons
- Cwaxons
- Dneutrons
34The greenhouse effect of the earths atmosphere keeps the earth warmer because...
- Aair is trasparent to incoming visible light, but partially opaque to outgoing infrared rays
- Bearth's magnetic field traps heat in the lower atmosphere
- Cthe ozone layer is very efficient at reflecting cold rays back into outerspace
- Dthe decay of radioactive elements inside the earth provides heat
35The layer of ozone in the earth's atmosphere...
- Aregulates earth's ocean temperature
- Bblocks some solar ultraviolet radiation
- Ccreates the earth's magnetic field
- Dreflects dangerous gamma rays back to space
36Which part of the moon's serface is younger.
- Athe maria areas
- Bthe cratered highlands
- Cthe light-colored areas
- Dthe mountain ranges
37the asteroid belt is bordered by the orbits of (choose 2 answers)
- Atitan
- Bneptune
- Cmars
- Dsaturn
- Ejupiter
- Fvenus
38the solid part of a comet is called the [blank_start]____[blank_end]
- ANucleus
39Comet tails are made of (mark all that apply)
- Aliquid water droplets
- Bmolten metal droplets
- Cgas
- Ddust particles
40The most abundant gas in earth's current atmosphere is
- Aoxygen
- Bnitrogen
- Chelium
- Dozone
- Emethane
41the 2ND most abundant gas in venus's atmosphere is
- Anitrogen
- Boxygen
- Cmethane
- Dcarbon dioxide
- Ehydrogen
42han solo has the millennium falcon <3 at Triton, and he has to pick up princess leia from the largest moon in our solar system. which way must he go?
- Acloser to the sun
- Bfarther from the sun
- Cneither because both moons orbit the same planet
- Dhe is already on the correct moon
43Which of the planets in our solar system that have rings has the smallest diameter? [blank_start]____[blank_end]
- Aneptune
44we know that this planet has no global magnetic field
- Auranus
- Bneptune
- Cmurcury
- Dsatern
- Evenus
- Fjupiter
- Gearth
45although venus is further from the sun than murcury, venus has a thigher surface tempurature. why?
- AMercury is smaller in size than Venus, so it absorbs less sunlight
- BMercury has less mass than Venus so it cant hold the heat photons
- CVenus has a thick atmosphere of carbon dioxide
- DVenus has a dense ozone layer
46theearth's magnetic feild is generated by
- Athe solid iron inner core vibrating rapidly
- Ba dynamo effect in the liquid outer core
- Cthe shifting of plates in the earth's crust
- Dthe solar wind plasma hitting the ozone layer
47the earth's surface does not contain large amounts of carbon dioxide because
- Ait chemically reacted with our helium
- Bit all escaped into space due to our low gravity
- Cour oceans and life forms remove it
- Dcows have removed all the co2 by inhaling it
48List a planet that exhibits retrograde rotation and is a terrestrial planet: [blank_start]__[blank_end]
- Avenus
49Compared to terrestrial planets, Jovian planets have (choose 3)
- Agreater density
- Blower denisty
- Cfewer moons
- Dmore moons
- Efaster rotation
- Fslower roation
50the asteroids in the asteroid belt are generally composed of
- Arock & metal
- Bice & gasses
- Chydrogen & helium
- Dcurds & whey
51the lump of metal we passed around in class is properly called a
- AMeteorite
- Bmeteroid
- Cmeteroligest
- Dmeteor
- Emeteor-senpai
52which of these materials are found in the polar caps on mars (mark all that apply)
- Afrozen oxygen
- Bwater ice
- Chelium ice
- Dsolid carbon dioxide
53The most common gas in the atmosphere of Saturn is
- Anitrogen
- Boxygen
- Cmethane
- Dcarbon dioxide
- Ehydrogen
54this planet has clouds made of concentrated sulfuric acid
- Auranus
- Bneptune
- Cmurcury
- Dsaturn
- Ejupiter
- Fvenus
55the gas tail of a comet points away from the sun due to
- Aradiation pressure
- Bsolar wind
- Cthe sun's magnetic field
- D"jets" from the comet
56the mean density of the earth is 5.5 times that of water, while the crust is only 3 times that of water. this suggests that..
- Aearth has a liquid core
- Bearth probably has a dense metal core
- Cearths core has a lower density than the crust
- Dearth's atmosphere is made mostly of oxygen
57the largest asteroid in the asteroid belt is
- Aceres
- Btitan
- Ccharon
- Dholestein
- Eangus
- Fguernsey
58the atmosphere of [blank_start]___[blank_end] has 1.5 times the surface pressure of the earth's atmosphere, is composed mainly of nitrogen, and has an opaque orange smog layer that hides the surface from the view of visible light telescopes.
- Atitan
59mars has a reddish surface color because
- Athe carbon dioxide in its atmosphere absorbs blue light, allowing red light to pass through.
- Bthe temperature of the surface causes it to glow with a dull reddish orange color
- Cthe single-cell organisms that cover its surface use a chlorophyll that is red, not green
- Dthe surface material has been oxidized by oxygen that was previously in its atmosphere
60which planet or moon have we observed that has a crust composed of plates that shift position very slowly over time? [blank_start]__[blank_end]
- Aearth
61why did the Jovian planets only form n the outer part of the solar system?
- Ait was the only part of the solar nebula that contained hydrogen gas molecules
- Bthe Jovian planets didn't have enough mass to attract rock and metal to form into terrestrials
- Chydrogen molecules move slow enough out there for a forming planet to hold onto them
- Dit was too hot out there to melt rock and metal to form terrestrial planets
62where on our moon would you most likely find water ice
- Ain the sea of tranquility
- Bin some permanently-shadowed craters near the lunar poles
- Cin the largest craters near the lunar equator
- D50 feet below the surfaces of all maria
63which of these has a sub-surface salt-water ocean
- Aeuropa
- Bvenus
- Cmars
- Djupiter
- Emercury
64which of these rotates three times on its axis for every two orbits it makes
- Aeuorpa
- Bvenus
- Cmars
- Djupiter
- Emercury
65tidal forces in the earth-moon system are responsible for what effects (mark two)
- Athe length of earth's day is getting longer
- Bthe length of earth's day is getting shorter
- Cthe moon's orbit is getting smaller
- Dthe moon's orbit is getting larger
66True or false: Neptune was discovered accidentally by William herchel using a 6-inch telescope
- AVerdadero
- BFalso
67the particles that hit the earth's atmosphere and burn up during a meteor shower
- Alarge rocks from the asteroid belt
- Bparticles left a comet trail along its oribt
- Cice crystals streaming in from interstellar space
- Dejecta from meteorite impacts on the lunar surface
68the oort cloud is located
- Ain venus' atmosphere
- Bin jupiters' atmosphere
- Cfar beyond neptune
- Daround io
69radiometric dating shows that the age of our solar system is [blank_start]_[blank_end] years.
- A4.6 billion
70number the stages of stellar evolution our sun will go though in order (1 - 4). White dwarf [blank_start]__[blank_end] , red giant [blank_start]__[blank_end] , main sequence [blank_start]__[blank_end] , planetary nebula ejection [blank_start]___[blank_end] ,
- A4
- B2
- C1
- D3
71Of the spectral types listed below, which one corresponds to the coolest temperature stars:
- AG
- BF
- CO
- DB
- EA
72Where are red giant stars located on the H-R diagram
- Aalong the left side
- Balong the top side
- Cin the upper right
- Din the lower right
73what property is plotted vertically on an H-R diagram? [blank_start]__[blank_end]
- Aluminosity
74if the position of and evolving star on a H-R diagram is moving straight left over time, what is happening
- Athe star is getting more luminous
- Bthe star is getting hotter
- Cthe star is getting larger in diameter
- Dthe star is getting less luminous
- Ethe star is getting cooler
- Fthe star is getting smaller in diameter
75the location of the main sequence turnoff point on the H-R diagram of a cluster tells us its
- Amass
- Bchemical composition
- Cage
- Dstellar population
76which element CANT be used by high mass starts as a fuel in nuclear fusion reactions to obtain energy
- Acarbon
- Bhydrogen
- Chelium
- Dsilicon
- Eiron
77the boundary of a black hole is called the [blank_start]_[blank_end] [blank_start]_[blank_end]
- AEvent
- BHorizon
78einstine's theory of general relitivity explains gravity in terms of
- Athe bending of space-time by matter, causing objects to follow curved geodesic paths
- Bquantum mechanical effects from the interactions of gravitons with higgs bosons
- Ca force of attraction between objects that depends on the electric charges of objects
- Dthe natural tendency for earthy substances to seek the center of the universe
79how do we know our galaxy has a very massove halo of "dark matter" if we cant see it
- Afrom the spectrum of the halo
- Bthe dark matter does give off detectable radio waves
- Cthe ages of planetary nebulae
- Dthe dark matter affects the rotation of the galaxy
80the diameter of our galaxy is approximately [blank_start]__[blank_end] light years
- A120000
81if you lower the temperature of a normal gas in a container...
- Ait expands
- Bits pressure decreases
- Cits molecules speed up
- Dit ionizes
82how do we know the interior structure of our sun
- Abecause it is a gas so we can see all the way into the center
- Bspace probes can send bursts of x-rays through the sun's core
- Cits surface oscillation tell us about the interior (helioseismology)
- Dwe have landed seismographs on the surface of the sun at night. (apocryphilology)
83a type 1a supernove (which shows no hydrogen in its spectrum) results from the explosion of a
- Avery young star
- Bvery high-mass star
- Cred dwarf
- Dwhite dwarf
84what is the most common type of star in our galaxy
- Ared dwarf
- Bwhite dwarf
- Cgreen giant
- Dblue dwarf
85two stars, gimli and fezzik, are both spectral type m3, but fezzik has much greater luminosity than gimli. Therefore we know...
- Agimli is hotter than fezzik
- Bgimli is cooler than fezzik
- Cgimli is larger than fezzik
- Dgimli is smaller than gezzik
86the gravitational collapse of a white dwarf is prevented by
- Adegenerate electron pressure
- Bdegenerate neutron pressure
- Cenergy production inside
- Dhot gas pressure
87the maximum mass a white dwarf can have is ___ solar masses
- A0.4
- B1.4
- C3.4
- D8
- E~100
88when a star first begins its life on the main sequence, what primarily determines where the star is located on the sequence
- Aits magnetic field strength
- Bits chemical composition
- Cits mass
- Dits age
89the nuclear reactions in our sun produce energy because
- Aof the radioactive decay of helium necleus
- Ba helium nucleus weights less than four hydrogen nuclei that form it by fusion
- Cthe reactions pull energy out of the suns magnetic field and radiate it into space
- Dthe reactions pull energy out of the suns rotation and radiate it into space
90pulsars are
- Ablack holes detected by their regular radio pulses
- Bneutron stars that beam energy as they rotate rapidly
- Cwhite dwarfs that change size
- Dold planetary nebulae
91which of these can produce a black hole?
- Atype B supernova
- Btype 2 supernova
- Ctype 1a supernova
- Dregular nova
92how do the chemical composition of stars
- Afrom their colors
- Bfrom their spectra
- Cfrom their orbits
- Dfrom samples collected by interstellar space probes.
93the photosphere of the sun has a temperature pf approximately [blank_start]___[blank_end] kelvin
- A5800
94sunspots are __ than the surrounding photosphere
- Ahotter
- Bbrighter
- Ccooler
- Dbluer
95where are the most neutrinos produced in the sun
- Acenter
- Bchromosphere
- Cphotosphere
- Dcorona
96the length of the sunspot cycle averages around ___ years
- A11
- B34
- C5
- D98
97the very hot, low density outer layer of the suns atmosphere is the
- Acorona
- Bphotosphere
- Caggitosphere
- Dchromosphere
98which stellar population formed first in our galaxy
- Apopulation 1
- Bpopulation 2
- Cpopulation zero
- Dthey all formed at the same time
99which of these stars would have the longest lifetime
- A1.4 solar mass star
- B0.4 solar mass star
- Ctype B star
- D50 solar mass star
100the two most abundant gasses in the interstellar medium are [blank_start]___[blank_end] and [blank_start]___[blank_end].
- Ahydrogen
- Bhelium
101which of these objects in our galaxy is the oldest
- Aan open cluster
- Bthe m13 globular cluster
- Cthe high mass cepheid star
- Dour sun
102what type of star produces a type 2 supernova
- Awhite dwarf
- Bvery high mass star
- Cred dwarf
- Dall of these
103we can learn the masses of various stars by observing
- Astar tempuratures
- Bbinary star orbits
- Cparallax shifts of stars
- Dstellar flares
104on a H-R diagram, most stars are located on the [blank_start]__[blank_end] [blank_start]___[blank_end].
- Amain
- Bsequence
105the crab nebula is
- Aa collapsing protostar
- Ba giant molecular cloud in orion
- Ci giant molecular cloud
- Da cluster of stars in the crab constellation
- Ean expanding supernova remnant
- Fthe
- Glargest globular cluster in the milky way
Información
- Descripción
- professor beach unmla astronomy final, review of old tests from the class
- Autor
- Greg Gustav
- Idioma
- English
- Visitas
- 30
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test