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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
galaxy
C
neula
D
universe
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
Closed clusters
B
Open clusters
C
Globular cluster
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
Spiral Galaxy
B
Elliptical galaxy
C
Irregular galaxy
D
Black hole 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
Supernova
B
Nebula
C
Black Hole
D
Quasars
5) Why do scientists study distant galaxies?
A
to learn about the speed of light
B
to learn what early galaxies looked like
C
to learn about space travel
D
to learn what galaxies are made of
6) All of the following are shapes used to classify galaxies EXCEPT
A
triangular
B
irregular
C
spiral
D
elliptical
7) Which one of the following statements is NOT true of quasars?
A
Quasars are among the most powerful energy sources in the universe.
B
Quasars may be the core of young galaxies that were just beginning to form.
C
Quasars are among the closest objects to Earth.
D
Quasars are among the most distant objects of space.
8) What type of galaxy is the Milky Way thought to be?
A
a round galaxy
B
an odd-shaped galaxy
C
a spiral galaxy
D
a quasar
9) Most galaxies are classified by their
A
shape
B
age
C
size
D
color
10) All of the following are major types of galaxies EXCEPT
A
elliptical galaxy
B
triangular galaxy.
C
spiral galaxy.
D
irregular galaxy.
*select an answer for all questions
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