Chapter 19.3 Review (8th) Question Preview (ID: 37804)


Galaxies. TEACHERS: click here for quick copy question ID numbers.

A collection of stars, dust, and gas bound together by gravity
a) universe
b) galaxy
c) neula
d) cluster

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) Open clusters
b) Closed clusters
c) Globular cluster
d)

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) Elliptical galaxy
b) Irregular galaxy
c) Black hole galaxy
d) Spiral Galaxy

A very luminous, star-like object that generates energy at a high rate; Thought to be the most distant objects in the universe
a) Quasars
b) Supernova
c) Nebula
d) Black Hole

Why do scientists study distant galaxies?
a) to learn what galaxies are made of
b) to learn what early galaxies looked like
c) to learn about space travel
d) to learn about the speed of light

All of the following are shapes used to classify galaxies EXCEPT
a) elliptical
b) irregular
c) spiral
d) triangular

Which one of the following statements is NOT true of quasars?
a) Quasars are among the closest objects to Earth.
b) Quasars may be the core of young galaxies that were just beginning to form.
c) Quasars are among the most distant objects of space.
d) Quasars are among the most powerful energy sources in the universe.

What type of galaxy is the Milky Way thought to be?
a) a spiral galaxy
b) a round galaxy
c) a quasar
d) an odd-shaped galaxy

Most galaxies are classified by their
a) shape
b) size
c) age
d) color

All of the following are major types of galaxies EXCEPT
a) spiral galaxy.
b) irregular galaxy.
c) elliptical galaxy
d) triangular galaxy.

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