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Astronomy review Flashcards | StudBud
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Astronomy review
Astronomy review
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I am a secondary science teacher.
Flashcards
38 cards
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Practice quiz
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Questions
38
Answers
1
Which of the following is NOT how stars are classified?
brightness
location
color
temperature
2
Valence electrons
are outermost electrons in an atom
all of these are correct
need 8 to be stable
are involved in chemical reactions
3
Astronauts float in space because
there is no gravity
there is less gravity
they are in free fall
it is fun
4
Mars
red planet with largest mountain
largest planet
blue with rings
has a thick atmosphere that traps gases
5
Which of the following is in the correct sequence for the EM spectrum?
microwave, visible, UV, X ray
radio, IR, Gamma, x ray
radio, IR, visible, microwave
UV, visible, IR, X ray, gamma
6
Dark energy is (2 correct answers)
comprises 68% of the universe
causes universe to expand
comprises 27% of our universe
causes universe to contract
7
Hubble
study moon
study Saturn
uses IR to take pictures of our universe
study Mars
8
Einstein's theory of gravity is
objects fall
parallel dimensions
space time has warps & distortions
9
Apollo
2 space probes launched in 1977
first manned missions to moon from 1961-1975
mission to Mars to study atmosphere
10 missions from 1965-1966 for spaceships to explore moon
10
Chandra is
a telescope that uses x rays to take pictures of supernovae
Mission to Saturn
telescope that uses IR to take pictures of the universe
Mission to Venus
11
Red shift is
shorter wavelenghts of light moving away from you
shorter wavelenghts of light moving toward you
longer wavelenghts of light moving away from you
longer wavelengths of light moving toward you
12
Where does a star receive its energy?
none of these
chemical reactions
nuclear fusion
nuclear fission
13
Covalent bonds ____ electrons; ionic bonds _____ electrons
share; exchange
exchange; exchange
exchange; share
share; share
14
Gemini
led to space race in 1960s
a precursor to Apollo
uses x rays to take pictures of supernovas
study Saturn
15
Sputnik
mission to study Venus
mission to study outer planets
Mission to study Mars
launched by Russians and led to space race
16
Which of the following is NOT one of Kepler's laws?
radius sweeps out in equal times in the orbit
planets travel in orbits around Sun
Planets travel in elliptical orbits around the Sun
Period of revolution is square to cube of distance
17
Which is the following correct sequence for a star like our Sun?
nebula, main sequence, planetary nebula, neutron star
nebula, protostar, main sequence, red giant, white dwarf
nebula, protostar, main sequence, red giant, , supernova
nebula, protostar, main sequence, red giant, supernova
18
Cassini
study Venus
study moon
study Saturn
Study galaxy
19
Voyager
space probes launched in 1977 that are still communicating
recent mission to Mars to study atmosphere
Mission to study planets similar to earth
manned missions to moon
20
The atomic mass is
sum of protons & electrons
sum of protons & neutrons
number of neutrons
number of protons
21
Which of the following statements about asteroids incorrect?
composed of rocks
are smaller than meteors
Larger than meteors
located between Mars & Jupiter
22
Aphelion is
furthest part of the orbit in the winter
closest part of the orbit in the winter
furthest part of the orbit in the summer
Closest part of the orbit in the summer
23
c is =
300,000 m/s
3000 m/s
3 x 108 m/s
3 x 106 m/s
24
Which of the following is NOT a category for galaxies?
regular
irregular
spiral
elliptical
25
Messier's objects are
All of these answers are correct
collections of galaxies
catalogued by Charles Messier
Catalogued in 1771
26
what forces are balanced in a stable star?
gravity & Newton's 1st law
nuclear fusion & gravity
nuclear fission & gravity
nuclear fusion & fission
27
Magellan
Studied Saturn
studied Venus
uses IR to take pictures of space
Studied the moon
28
An event horizon on a black hole is NOT one of the following
no escape is possible
event that occur here cannot affect an outside observer
does not exist
light emitted from here cannot be seen in the outside
29
Rotation is_____, revolution is ____
turning around an internal axis; an external axis
turning about an external axis, internal axis
30
Isotopes are atoms with a different number of
electrons
protons
atoms
neutrons
31
Ionic bonds are formed between
nonmetals & nonmetals
metals & metals
any of these can be correct depending upon situation
metals & nonmetals
32
Covalent bonds form between
metals and nonmetals
all of these can be correct depending upon situation
nonmetals & nonmetals
metals & metals
33
perihelion is ____.
closest part of orbit & winter
furthest part of orbit & winter
closest part of orbit and summer
furthest part of orbit & summer
34
MAVEN is the
telescope that takes pictures of the universe
Mission to the moon
most recent mission to Mars which studies its atmosphere
mission to Venus
35
Dark matter
holds universe together
does not interact with light
comprises 27% of universe
all of these are correct
36
A pulsar is....
magnetized rotating neutron star
rotating black hole
rotating supernova
37
In a solar eclipse
the new moon is between the Sun and earth
The earth is between the new moon & sun
the full moon is between Earth & Sun
The Earth is between the full moon & Sun
38
Mercury
thick atmosphere of trapped greenhouse gases
red planet
smallest planet riddled with crater impacts
rotates on its side
