Question 1

Type I supernovae can be used to determine distances to galaxies much better than type II supernovae.

Accepted Answer

A) True 
 B)False

Question 2

Hubble's Law starts as a plot of recessional ________ versus distance to the galaxies.

Accepted Answer

The answer of Hubble's Law starts as a plot of...

Question 3

Explain as exactly as possible the way in which the central engine of active galaxies and quasars actually works. Why is the orientation so important?

Accepted Answer

Matter from an accretion disk falls into

Question 4

Astronomers believe that a spiral galaxy may form

Accepted Answer

A)  from a collision between a small and large galaxy. 
B)  due to a quasar shutting down. 
C)  from the sudden contraction of an elliptical galaxy. 
D)  from the collision of two giant elliptical galaxies. 
E)  from the explosion of a dwarf irregular galaxy. 
A)  from a collision between a small and large galaxy. 
B)  due to a quasar shutting down. 
C)  from the sudden contraction of an elliptical galaxy. 
D)  from the collision of two giant elliptical galaxies. 
E)  from the explosion of a dwarf irregular galaxy.

Question 5

According to their rotation curves, most spiral galaxies

Accepted Answer

A)  rotate as a solid body. 
B)  rotate counterclockwise. 
C)  have decreasing rotational speeds with increasing distance. 
D)  contain dark matter. 
E)  contain dark energy. 
A)  rotate as a solid body. 
B)  rotate counterclockwise. 
C)  have decreasing rotational speeds with increasing distance. 
D)  contain dark matter. 
E)  contain dark energy.

Question 6

The pregalactic blobs had masses similar to

Accepted Answer

A)  the earth. 
B)  the Sun. 
C)  globular clusters. 
D)  the Large Magellanic Cloud. 
E)  the Milky Way. 
A)  the earth. 
B)  the Sun. 
C)  globular clusters. 
D)  the Large Magellanic Cloud. 
E)  the Milky Way.

Question 7

In the Local Group, how might even the Milky Way become a victim?

Accepted Answer

In the binary system of us and Andromeda

Question 8

Which of the following is NOT one of the normal types of galaxies?

Accepted Answer

A)  Normal spirals 
B)  Barrel spirals 
C)  Seyfert spirals 
D)  Irregular type II 
E)  Dwarf ellipticals 
A)  Normal spirals 
B)  Barrel spirals 
C)  Seyfert spirals 
D)  Irregular type II 
E)  Dwarf ellipticals

Question 9

There is very little interstellar gas or dust in most elliptical galaxies.

Accepted Answer

A) True 
 B)False

Question 10

Most galaxies are in ________, which contain hundreds or thousands of galaxies.

Accepted Answer

The answer of Most galaxies are in ________, which contain...

Question 11

The energy source for active galactic nuclei is probably a(n) ________ around a supermassive black hole.

Accepted Answer

The answer of The energy source for active galactic nuclei...

Question 12

The Milky Way's companion galaxies, the Magellanic Clouds, are irregular galaxies.

Accepted Answer

A) True 
 B)False

Question 13

The Large and Small Magellanic Clouds fall into class

Accepted Answer

A)  SBc. 
B)  Pec. 
C)  E6. 
D)  Irr I. 
E)  E3. 
A)  SBc. 
B)  Pec. 
C)  E6. 
D)  Irr I. 
E)  E3.

Question 14

What is TRUE of spiral galaxies?

Accepted Answer

A)  They are much less common at larger redshifts. 
B)  They are relatively rare in regions of high galaxy density. 
C)  They are only found in the center of rich galaxy clusters. 
D)  They have never been seen to have large redshifts. 
E)  They evolve from giant ellipticals. 
A)  They are much less common at larger redshifts. 
B)  They are relatively rare in regions of high galaxy density. 
C)  They are only found in the center of rich galaxy clusters. 
D)  They have never been seen to have large redshifts. 
E)  They evolve from giant ellipticals.

Question 15

Gravity lensing lets us map the distribution of both visible and dark matter.

Accepted Answer

A) True 
 B)False

Question 16

Collisions between galaxies

Accepted Answer

A)  are much rarer than collisions between stars. 
B)  can turn elliptical galaxies into spirals. 
C)  cause large numbers of stars to collide and explode. 
D)  cause the gas and dust clouds to collide, leading to rapid star formation. 
E)  are the best explanation for gamma-ray burst events. 
A)  are much rarer than collisions between stars. 
B)  can turn elliptical galaxies into spirals. 
C)  cause large numbers of stars to collide and explode. 
D)  cause the gas and dust clouds to collide, leading to rapid star formation. 
E)  are the best explanation for gamma-ray burst events.

Question 17

________ galaxies are essentially featureless; their light reveals evidence for the presence of only old red Main Sequence and red giant stars.

Accepted Answer

The answer of ________ galaxies are essentially featureless; their light...

Question 18

The greatest variation in size, mass, and luminosity occurs in

Accepted Answer

A)  globular clusters. 
B)  elliptical galaxies. 
C)  spiral and barred spiral galaxies. 
D)  type I vs type II irregulars. 
E)  Seyfert galaxies. 
A)  globular clusters. 
B)  elliptical galaxies. 
C)  spiral and barred spiral galaxies. 
D)  type I vs type II irregulars. 
E)  Seyfert galaxies.

Type I supernovae can be used to determine distances to galaxies much better than type II supernovae.

Hubble's Law starts as a plot of recessional ________ versus distance to the galaxies.

Explain as exactly as possible the way in which the central engine of active galaxies and quasars actually works. Why is the orientation so important?

Astronomers believe that a spiral galaxy may form

According to their rotation curves, most spiral galaxies

The pregalactic blobs had masses similar to

In the Local Group, how might even the Milky Way become a victim?

Which of the following is NOT one of the normal types of galaxies?

There is very little interstellar gas or dust in most elliptical galaxies.

Most galaxies are in ________, which contain hundreds or thousands of galaxies.

The energy source for active galactic nuclei is probably a(n) ________ around a supermassive black hole.

The Milky Way's companion galaxies, the Magellanic Clouds, are irregular galaxies.

The Large and Small Magellanic Clouds fall into class

What is TRUE of spiral galaxies?

Gravity lensing lets us map the distribution of both visible and dark matter.

Collisions between galaxies

________ galaxies are essentially featureless; their light reveals evidence for the presence of only old red Main Sequence and red giant stars.

The greatest variation in size, mass, and luminosity occurs in

The Night Sky

Light and Telescopes

The Solar System

Earth and Its Moon

The Eight Planets

Small Bodies in the Solar System

Formation of Planetary Systems

The Sun

Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

The Milky Way Galaxy

Cosmology and the Universe

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Exam 14: Galaxies

Type I supernovae can be used to determine distances to galaxies much better than type II supernovae.

Hubble's Law starts as a plot of recessional ________ versus distance to the galaxies.

Explain as exactly as possible the way in which the central engine of active galaxies and quasars actually works. Why is the orientation so important?

Astronomers believe that a spiral galaxy may form

According to their rotation curves, most spiral galaxies

The pregalactic blobs had masses similar to

In the Local Group, how might even the Milky Way become a victim?

Which of the following is NOT one of the normal types of galaxies?

There is very little interstellar gas or dust in most elliptical galaxies.

Most galaxies are in ________, which contain hundreds or thousands of galaxies.

The energy source for active galactic nuclei is probably a(n) ________ around a supermassive black hole.

The Milky Way's companion galaxies, the Magellanic Clouds, are irregular galaxies.

The Large and Small Magellanic Clouds fall into class

What is TRUE of spiral galaxies?

Gravity lensing lets us map the distribution of both visible and dark matter.

Collisions between galaxies

________ galaxies are essentially featureless; their light reveals evidence for the presence of only old red Main Sequence and red giant stars.

The greatest variation in size, mass, and luminosity occurs in

The Night Sky

Light and Telescopes

The Solar System

Earth and Its Moon

The Eight Planets

Small Bodies in the Solar System

Formation of Planetary Systems

The Sun

Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

The Milky Way Galaxy

Cosmology and the Universe

Filters