Question 1

Arrange the following events in chronological order,from earliest to latest after the cosmic singularity: baryogenesis,inflation,nucleosynthesis,recombination.

Accepted Answer

Inflation,baryogenes

Question 2

Which of the following provides the strongest evidence for the classic Big Bang model?

Accepted Answer

A)  the age of the Solar System 
B)  the cosmic microwave background 
C)  the abundance of galaxies 
D)  none of the above 
A)  the age of the Solar System 
B)  the cosmic microwave background 
C)  the abundance of galaxies 
D)  none of the above

Question 3

How did astronomers rule out the steady-state model of the Universe in the 1960s?

Accepted Answer

They discovered evid

Question 4

Which of the following types of universes has the LOWEST density?

Accepted Answer

A)  positive curvature 
B)  flat curvature 
C)  negative curvature 
D)  fluctuating curvature 
A)  positive curvature 
B)  flat curvature 
C)  negative curvature 
D)  fluctuating curvature

Question 5

Which of the following describes the study of the Universe as a whole?

Accepted Answer

A)  inflationary theory 
B)  astronomy 
C)  cosmology 
D)  astrophysics 
A)  inflationary theory 
B)  astronomy 
C)  cosmology 
D)  astrophysics

Question 6

Leptons:

Accepted Answer

A)  are susceptible to the strong nuclear force. 
B)  are susceptible to the weak nuclear force. 
C)  carry the electromagnetic force. 
D)  carry the gravitational force. 
A)  are susceptible to the strong nuclear force. 
B)  are susceptible to the weak nuclear force. 
C)  carry the electromagnetic force. 
D)  carry the gravitational force.

Question 7

Which of the following presents the best motivation for inflation?

Accepted Answer

A)  the density of the Universe today 
B)  the formation of baryons in the Universe 
C)  the size of the observable Universe 
D)  the apparent recession velocity at large distances, which exceeds the speed of light 
A)  the density of the Universe today 
B)  the formation of baryons in the Universe 
C)  the size of the observable Universe 
D)  the apparent recession velocity at large distances, which exceeds the speed of light

Question 8

Which of the following events occurred just before normal matter began assembling structure through gravity?

Accepted Answer

A)  inflation 
B)  baryogenesis 
C)  recombination 
D)  nucleosynthesis 
A)  inflation 
B)  baryogenesis 
C)  recombination 
D)  nucleosynthesis

Question 9

Which of the following questions can the Big Bang model answer?

Accepted Answer

A)  Will the expansion of the Universe stop? 
B)  What caused the Universe to expand? 
C)  What is the source of the mass-energy in our Universe? 
D)  What existed before the Big Bang? 
A)  Will the expansion of the Universe stop? 
B)  What caused the Universe to expand? 
C)  What is the source of the mass-energy in our Universe? 
D)  What existed before the Big Bang?

Question 10

An astronomer measures the properties of an alternate universe.He or she discovers that the angles of a triangle in this universe add up to more than 180 degrees.What can he or she deduce about the universe's density?

Accepted Answer

It is larg

Arrange the following events in chronological order,from earliest to latest after the cosmic singularity: baryogenesis,inflation,nucleosynthesis,recombination.

Which of the following provides the strongest evidence for the classic Big Bang model?

How did astronomers rule out the steady-state model of the Universe in the 1960s?

Which of the following types of universes has the LOWEST density?

Which of the following describes the study of the Universe as a whole?

Leptons:

Which of the following presents the best motivation for inflation?

Which of the following events occurred just before normal matter began assembling structure through gravity?

Which of the following questions can the Big Bang model answer?

An astronomer measures the properties of an alternate universe.He or she discovers that the angles of a triangle in this universe add up to more than 180 degrees.What can he or she deduce about the universe's density?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Home Base: Earth and Moon

Sibling Worlds: Mercury, Venus, and Mars

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Filters

Exam 18: Cosmology

Arrange the following events in chronological order,from earliest to latest after the cosmic singularity: baryogenesis,inflation,nucleosynthesis,recombination.

Which of the following provides the strongest evidence for the classic Big Bang model?

How did astronomers rule out the steady-state model of the Universe in the 1960s?

Which of the following types of universes has the LOWEST density?

Which of the following describes the study of the Universe as a whole?

Leptons:

Which of the following presents the best motivation for inflation?

Which of the following events occurred just before normal matter began assembling structure through gravity?

Which of the following questions can the Big Bang model answer?

An astronomer measures the properties of an alternate universe.He or she discovers that the angles of a triangle in this universe add up to more than 180 degrees.What can he or she deduce about the universe's density?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Home Base: Earth and Moon

Sibling Worlds: Mercury, Venus, and Mars

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Filters