Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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We
can be sure that the Milky Way galaxy we live in is a spiral galaxy rather than an elliptical galaxy
because a. | it has curved
arms. | c. | its stars are
all about the same age. | b. | it does not show any rotation. | d. | new stars are no longer forming. | | | | |
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2.
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Earth
stays in orbit around the Sun because of inertia and a. | friction. | c. | magnetism. | b. | gravity. | d. | momentum. | | | | |
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3.
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Which
is the largest object in the solar system? a. | Earth | c. | the Sun | b. | Jupiter | d. | the
Moon | | | | |
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4.
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If
you were to watch the stars all night, they would seem to a. | stay in exactly
the same place in the sky. | b. | move across the sky at night, as the Sun does during the
day. | c. | go in circles
around the point straight up from where you are. | d. | move across the
sky at night, in the opposite direction that the Sun moves during the day. | | |
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5.
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According to the big bang theory, the universe originated as a a. | point where all
matter and energy was concentrated. | b. | complex system of galaxies that has since been
expanding. | c. | complete, limitless void without any matter or
energy. | d. | massive sphere of matter and energy with near-infinite
diameter. | | |
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6.
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There
are several different types of galaxies. The Milky Way, which contains our solar system,
is a. | a spiral
galaxy. | c. | a barred spiral
galaxy. | b. | an elliptical galaxy. | d. | an irregular galaxy. | | | | |
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7.
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All
stars begin their lives as parts of a. | nebulas. | b. | protostars. | c. | pulsars. | d. | double
stars. | | |
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8.
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The
force that tends to pull together the matter in stars is a. | gravity | b. | nuclear fusion. | c. | expansion. | d. | nuclear fission. | | |
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9.
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Depending on its mass, a star may live from a. | 1 million to 10
million years. | b. | 5 million to 100 million years. | c. | 10 million to
200 billion years. | d. | 10 billion to 500 billion years. | | |
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10.
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How
are elliptical galaxies and spiral galaxies different? a. | Elliptical
galaxies have almost no gas or dust. | b. | Elliptical galaxies vary more in shape than spiral
galaxies. | c. | Spiral galaxies have almost no gas or
dust. | d. | Spiral galaxies contain only old
stars. | | |
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11.
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The
Milky Way Galaxy is a a. | spiral galaxy. | b. | cloud
galaxy. | c. | elliptical galaxy. | d. | irregular
galaxy. | | |
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12.
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Scientists think that our universe is approximately a. | 1 to 5 million
years old. | b. | 1 to 2 billion years old. | c. | 10 to 15 billion
years old. | d. | 100 to 200 billion years old. | | |
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13.
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One
piece of evidence that supports the big bang theory is the observation that most galaxies are
moving a. | toward our
galaxy. | b. | toward one another. | c. | in random
directions. | d. | away from one another. | | |
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14.
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The
theory that astronomers have developed to describe the formation of the universe is called
the a. | expanding cloud
theory. | b. | time warp theory. | c. | galactic
expansion theory. | d. | big bang theory. | | |
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15.
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The
solar system formed from a. | an expanding galaxy. | b. | a giant cloud of
gas and dust. | c. | an enormous explosion. | d. | a black
hole. | | |
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16.
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You
visited an observatory and looked through the telescope. You saw a ball of stars through the
telescope. What type of object did you see? a. | a spiral galaxy | c. | a globular cluster | b. | an open
cluster | d. | an irregular
galaxy | | | | |
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17.
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In
which part of a spiral galaxy do you expect to find nebulas? a. | the spiral
arms | c. | the
halo | b. | the central
region | d. | all parts of the
galaxy | | | | |
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18.
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Which
statement about the big bang theory is accurate? a. | The universe will never end. | b. | New matter is
being continuously created in the universe. | c. | The universe is
filled with radiation coming from all directions in space. | d. | We can locate
the center of the universe. | | |
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19.
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Which
of the following is the largest? a. | a nebula | c. | a neutron star | b. | a
galaxy | d. | a globular
cluster | | | | |
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20.
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According to the big bang theory, the universe is about a. | 470 billion
years old. | c. | 4.7 billion
years old. | b. | 500 billion years old. | d. | 15 billion years old. | | | | |
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Examine the illustrations of galaxies below, and answer the questions that
follow.
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21.
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Illustration A is a(n) a. | spiral galaxy. | c. | irregular galaxy. | b. | elliptical
galaxy | d. | quasar. | | | | |
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22.
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Illustration B is a(n) a. | spiral galaxy. | c. | irregular galaxy. | b. | elliptical
galaxy | d. | quasar. | | | | |
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23.
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Illustration C is a(n) a. | spiral galaxy. | c. | irregular galaxy. | b. | elliptical
galaxy. | d. | quasar. | | | | |
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24.
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In
space, ____ are giant clouds of gas and dust. a. | nebulas (or nebulae) | c. | open clusters | b. | globular
clusters | d. | quasars | | | | |
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