Multiple Choice
Identify
the letter of the choice that best completes the statement or answers
the question.
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1. |
A
light-year is
a. |
a
unit of time. |
c. |
a
unit of mass. |
b. |
a unit of distance. |
d. |
a unit of density. |
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2. |
Not
including the sun, the closest stars to Earth are
a. |
4.3 light-years away. |
c. |
430 light-years away. |
b. |
43
light-years away. |
d. |
4300
light-years away. |
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3. |
Our
solar system is inside the
a. |
Alpha Centauri galaxy. |
c. |
Milky Way galaxy. |
b. |
Betelgeuse
galaxy. |
d. |
Andromeda
galaxy. |
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4. |
Galaxies are classified based on their
a. |
shape. |
c. |
stars. |
b. |
color. |
d. |
age. |
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5. |
Our
galaxy is classified as a(n)
a. |
irregular galaxy. |
c. |
spherical galaxy. |
b. |
elliptical
galaxy. |
d. |
spiral
galaxy. |
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6. |
The
big bang theory states that the universe began with a gigantic explosion
a. |
4.4
billion years ago. |
c. |
50
billion years ago. |
b. |
10
to 20 billion years ago. |
d. |
100
billion years ago. |
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7. |
All
stars
a. |
reflect
light from the sun. |
c. |
produce
their own light. |
b. |
appear to wander off their star paths. |
d. |
all
of the above. |
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8. |
All
stars
a. |
radiate
heat energy. |
c. |
radiate
light energy. |
b. |
radiate electromagnetic waves. |
d. |
all of the above. |
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9. |
The
sun is
a. |
an
unusually hot star. |
c. |
a
typical star. |
b. |
a very cool star. |
d. |
none of the above. |
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10. |
Stars
are held together by
a. |
ionic forces. |
c. |
electrical forces. |
b. |
magnetic
forces. |
d. |
gravitational
forces. |
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11. |
In
stars, energy is produced primarily as hydrogen atoms are combined to
form
a. |
helium
atoms. |
c. |
oxygen
atoms. |
b. |
carbon atoms. |
d. |
nitrogen atoms. |
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12. |
Energy is released in stars as a result of
a. |
fission
reactions. |
c. |
endothermic
reactions. |
b. |
fusion reactions. |
d. |
biochemical reactions. |
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13. |
Supergiant stars
a. |
form from red giants. |
c. |
form planetary nebula. |
b. |
fuse
hydrogen into carbon. |
d. |
form
supernovas. |
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14. |
Besides the sun and the moon, what is the brightest object in the
sky?
a. |
Sirius |
c. |
Jupiter |
b. |
Venus |
d. |
Orion |
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15. |
All
of the planets in our solar system
a. |
give off their own light. |
c. |
have thick atmospheres. |
b. |
appear
in the same position nightly. |
d. |
orbit
the sun. |
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16. |
Which
of the following is not an inner planet?
a. |
Mars |
c. |
Venus |
b. |
Jupiter |
d. |
Earth |
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17. |
Mercury is characterized by
a. |
a thick atmosphere. |
b. |
large
volumes of water. |
c. |
very extreme temperatures. |
d. |
high
atmospheric pressure at its surface. |
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18. |
The
inner planets are separated from the outer planets by
a. |
Orion’s
belt. |
c. |
the
Milky Way. |
b. |
an
asteroid belt. |
d. |
the
moon's orbit. |
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19. |
The
Great Red Spot is believed to be a giant storm in the atmosphere of
a. |
Mars. |
c. |
Saturn. |
b. |
Jupiter. |
d. |
Neptune. |
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20. |
Which
of the following does not have rings?
a. |
Uranus |
c. |
Jupiter |
b. |
Mars |
d. |
Neptune |
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21. |
Planets may have formed out of material orbiting the early sun
through the process of
a. |
solidification. |
c. |
accretion. |
b. |
sedimentation. |
d. |
radiation. |
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22. |
The
phases of the moon are determined by
a. |
the relative positions of Earth and moon. |
b. |
the relative positions of the sun and moon. |
c. |
the relative positions of Earth and sun. |
d. |
the
relative positions of Earth, sun, and moon. |
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23. |
During a solar eclipse
a. |
the moon blocks out the sun. |
c. |
the moon blocks out Earth. |
b. |
the
sun blocks out the moon. |
d. |
Earth
blocks out the sun. |
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