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Chapter 19.3 Review (8th)
Test Description: Galaxies
Instructions: Answer all questions to get your test result.
1) A collection of stars, dust, and gas bound together by gravity
A
cluster
B
neula
C
universe
D
galaxy
2) Groups of closely grouped stars that are usually located along the spiral disk of a galaxy. The stars are grouped close together relative to surrounding stars
A
Globular cluster
B
Open clusters
C
Closed clusters
3) About one-third of all galaxies are simply massive blobs of stars. Many look like spheres, and others are more stretched out. This type of galaxy has a bright center and very little dust and gas
A
Black hole galaxy
B
Irregular galaxy
C
Spiral Galaxy
D
Elliptical galaxy
4) A very luminous, star-like object that generates energy at a high rate; Thought to be the most distant objects in the universe
A
Black Hole
B
Nebula
C
Supernova
D
Quasars
5) Why do scientists study distant galaxies?
A
to learn about space travel
B
to learn what galaxies are made of
C
to learn about the speed of light
D
to learn what early galaxies looked like
6) All of the following are shapes used to classify galaxies EXCEPT
A
irregular
B
spiral
C
elliptical
D
triangular
7) Which one of the following statements is NOT true of quasars?
A
Quasars are among the most distant objects of space.
B
Quasars are among the closest objects to Earth.
C
Quasars may be the core of young galaxies that were just beginning to form.
D
Quasars are among the most powerful energy sources in the universe.
8) What type of galaxy is the Milky Way thought to be?
A
a quasar
B
a round galaxy
C
an odd-shaped galaxy
D
a spiral galaxy
9) Most galaxies are classified by their
A
color
B
size
C
shape
D
age
10) All of the following are major types of galaxies EXCEPT
A
irregular galaxy.
B
spiral galaxy.
C
elliptical galaxy
D
triangular galaxy.
*select an answer for all questions
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