Question 1

Current theoretical models suggest that most of the universe is composed of hot dark matter.

Accepted Answer

A) True 
 B)False

Question 2

What do astronomers believe will be the final state of our universe?

Accepted Answer

A)  a Big Crunch in which everything collapses back in on itself 
B)  an ever-expanding universe filled with nothing but hydrogen and helium gas 
C)  a universe that stops expanding and is filled with nothing but white dwarfs, neutron stars, and black holes 
D)  an ever-expanding universe filled with photons and elementary particles 
E)  a universe that stops expanding once enough stars become black holes 
A)  a Big Crunch in which everything collapses back in on itself 
B)  an ever-expanding universe filled with nothing but hydrogen and helium gas 
C)  a universe that stops expanding and is filled with nothing but white dwarfs, neutron stars, and black holes 
D)  an ever-expanding universe filled with photons and elementary particles 
E)  a universe that stops expanding once enough stars become black holes

Question 3

Figure 1
-Figure 1 shows images taken from the Bolshoi simulation of the formation of the large-scale structure in the universe. Which one of these images represents the state of the universe at the highest redshift?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  All of these occur at the same redshift, just in different regions of the universe. 
A)  A 
B)  B 
C)  C 
D)  D 
E)  All of these occur at the same redshift, just in different regions of the universe.

Question 4

If astronomers discover a new ultrafaint galaxy, where would it most likely be found?

Accepted Answer

A)  on its own, away from other galaxies 
B)  a few billion light years away from Earth 
C)  at high redshift 
D)  in a large galaxy cluster 
E)  orbiting the Milky Way 
A)  on its own, away from other galaxies 
B)  a few billion light years away from Earth 
C)  at high redshift 
D)  in a large galaxy cluster 
E)  orbiting the Milky Way

Question 5

There are fluctuations in the CMB due to the fact that clumps of dark matter had already begun to form in the universe when the light from the CMB was given off.

Accepted Answer

A) True 
 B)False

Current theoretical models suggest that most of the universe is composed of hot dark matter.

What do astronomers believe will be the final state of our universe?

Figure 1 -Figure 1 shows images taken from the Bolshoi simulation of the formation of the large-scale structure in the universe. Which one of these images represents the state of the universe at the highest redshift?

If astronomers discover a new ultrafaint galaxy, where would it most likely be found?

There are fluctuations in the CMB due to the fact that clumps of dark matter had already begun to form in the universe when the light from the CMB was given off.

Why Learn Astronomy

Patterns in the Skymotions of Earth

Motion of Astronomical Bodies

Gravity and Orbits

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 Liquid the Giant Planets

Planetary Adornmentsmoons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

Our Starthe Sun

Star Formation and the Interstellar Medium

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Relativity and Black Holes

The Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Life

Filters

Exam 23: Large-Scale Structure in the Universe

Current theoretical models suggest that most of the universe is composed of hot dark matter.

What do astronomers believe will be the final state of our universe?

Figure 1 -Figure 1 shows images taken from the Bolshoi simulation of the formation of the large-scale structure in the universe. Which one of these images represents the state of the universe at the highest redshift?

If astronomers discover a new ultrafaint galaxy, where would it most likely be found?

There are fluctuations in the CMB due to the fact that clumps of dark matter had already begun to form in the universe when the light from the CMB was given off.

Why Learn Astronomy

Patterns in the Skymotions of Earth

Motion of Astronomical Bodies

Gravity and Orbits

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 Liquid the Giant Planets

Planetary Adornmentsmoons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

Our Starthe Sun

Star Formation and the Interstellar Medium

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Relativity and Black Holes

The Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Life

Filters