Question 1

In clusters of galaxies,the total mass of dark matter exceeds the luminous matter by about a factor of 1,000.

Accepted Answer

A) True 
 B)False

Question 2

Peculiar velocities are produced by

Accepted Answer

A)  erroneous redshifts. 
B)  gravity. 
C)  supernovae. 
D)  eclipsing binary stars. 
A)  erroneous redshifts. 
B)  gravity. 
C)  supernovae. 
D)  eclipsing binary stars.

Question 3

How do astronomers explain the formation of elliptical galaxies?

Accepted Answer

Elliptical galaxies most likely formed a

Question 4

Which of the following is FALSE?

Accepted Answer

A)  The Local Group contains approximately 30 galaxies. 
B)  The Local Group encompasses the region within 4 Mly of the Milky Way. 
C)  98 percent of all the mass in the Local Group resides in two spiral galaxies. 
D)  Most galaxies in the local group are spiral galaxies. 
A)  The Local Group contains approximately 30 galaxies. 
B)  The Local Group encompasses the region within 4 Mly of the Milky Way. 
C)  98 percent of all the mass in the Local Group resides in two spiral galaxies. 
D)  Most galaxies in the local group are spiral galaxies.

Question 5

The peculiar velocities of galaxies allow us to determine how matter is distributed in the universe.

Accepted Answer

A) True 
 B)False

In clusters of galaxies,the total mass of dark matter exceeds the luminous matter by about a factor of 1,000.

Peculiar velocities are produced by

How do astronomers explain the formation of elliptical galaxies?

Which of the following is FALSE?

The peculiar velocities of galaxies allow us to determine how matter is distributed in the universe.

Why Learn Astronomy

Patterns in the Skymotions of Earth

Gravity and Orbitsa Celestial Ballet

Light

The Tools of the Astronomer

The Birth and Evolution of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquidthe Giant Planets

Gravity Is More Than Keplers Laws

Planetary Adornmentsmoons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

A Run-Of-The-Mill G-Type Starour Sun

Star Formation and the Interstellar Medium

Stars in the Slow Lanelow-Mass Stellar Evolution

Live Fast,die Younghigh-Mass Stellar Evolution

Our Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Life

Filters

Exam 22: The Origin of Structure

In clusters of galaxies,the total mass of dark matter exceeds the luminous matter by about a factor of 1,000.

Peculiar velocities are produced by

How do astronomers explain the formation of elliptical galaxies?

Which of the following is FALSE?

The peculiar velocities of galaxies allow us to determine how matter is distributed in the universe.

Why Learn Astronomy

Patterns in the Skymotions of Earth

Gravity and Orbitsa Celestial Ballet

Light

The Tools of the Astronomer

The Birth and Evolution of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquidthe Giant Planets

Gravity Is More Than Keplers Laws

Planetary Adornmentsmoons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

A Run-Of-The-Mill G-Type Starour Sun

Star Formation and the Interstellar Medium

Stars in the Slow Lanelow-Mass Stellar Evolution

Live Fast,die Younghigh-Mass Stellar Evolution

Our Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Life

Filters