Question 1

The redshifts of the galaxies imply that the Universe is expanding and that we are at the center.

Accepted Answer

A) True 
 B)False

Question 2

Even if the Universe has no edge, it has a center.

Accepted Answer

A) True 
 B)False

Question 3

In the late 1990's, it was discovered from distances of ___________ in distant galaxies that the expansion of the Universe is ___________.

Accepted Answer

A)  Cepheid variables; accelerating 
B)  Cepheid variables; decelerating 
C)  supernovae; accelerating 
D)  supernovae; decelerating 
A)  Cepheid variables; accelerating 
B)  Cepheid variables; decelerating 
C)  supernovae; accelerating 
D)  supernovae; decelerating

Question 4

If the Universe is closed, then its age will be

Accepted Answer

A)  less than two-thirds of 1/ H . 
B)  more than two-thirds of 1/ H . 
C)  equal to 1/ H . 
D)  equal to H squared. 
E)  equal to the square-root of H . 
A)  less than two-thirds of 1/ H . 
B)  more than two-thirds of 1/ H . 
C)  equal to 1/ H . 
D)  equal to H squared. 
E)  equal to the square-root of H .

Question 5

Which event occurred at a redshift around 1100?

Accepted Answer

A)  big bang 
B)  inflation 
C)  CMB 
D)  first stars formed 
A)  big bang 
B)  inflation 
C)  CMB 
D)  first stars formed

Question 6

The Universe contains _____________________.

Accepted Answer

A)  22.7% baryonic, 4.5% WIMPs, 72.8% dark energy 
B)  22.7% normal, 4.5% non-Baryonic, 72.8% dark energy 
C)  22.7% non-Baryonic, 4.5% normal, 72.8% dark energy 
D)  22.7% dark energy, 4.5% baryonic, 72.8% non-baryonic 
A)  22.7% baryonic, 4.5% WIMPs, 72.8% dark energy 
B)  22.7% normal, 4.5% non-Baryonic, 72.8% dark energy 
C)  22.7% non-Baryonic, 4.5% normal, 72.8% dark energy 
D)  22.7% dark energy, 4.5% baryonic, 72.8% non-baryonic

Question 7

The ___________ are theories that unify the electromagnetic, weak, and strong forces at extremely high energies.

Accepted Answer

grand unif

Question 8

The rate of expansion of the Universe is currently increasing.

Accepted Answer

A) True 
 B)False

Question 9

As shown in the above spectra, the higher the redshift, the higher the recessional velocity.

Accepted Answer

A) True 
 B)False

Question 10

If the Universe is closed and finite, then

Accepted Answer

A)  the Universe will expand forever. 
B)  the Universe has a center. 
C)  the Universe has an edge. 
D)  None of the other choices are correct. 
A)  the Universe will expand forever. 
B)  the Universe has a center. 
C)  the Universe has an edge. 
D)  None of the other choices are correct.

Question 11

The density of the Universe is

Accepted Answer

A)  equal to the critical density if the Universe is closed. 
B)  equal to the critical density if the Universe is flat. 
C)  greater than the critical density if the Universe is flat. 
D)  greater than the critical density if the Universe is open. 
E)  None of the other choices are correct. 
A)  equal to the critical density if the Universe is closed. 
B)  equal to the critical density if the Universe is flat. 
C)  greater than the critical density if the Universe is flat. 
D)  greater than the critical density if the Universe is open. 
E)  None of the other choices are correct.

Question 12

The deuterium and lithium-7 in distant quasars and in the interstellar medium suggests that the Universe is open.

Accepted Answer

A) True 
 B)False

The redshifts of the galaxies imply that the Universe is expanding and that we are at the center.

Even if the Universe has no edge, it has a center.

In the late 1990's, it was discovered from distances of _ in distant galaxies that the expansion of the Universe is _.

If the Universe is closed, then its age will be

Which event occurred at a redshift around 1100?

The Universe contains _____________________.

The ___________ are theories that unify the electromagnetic, weak, and strong forces at extremely high energies.

The rate of expansion of the Universe is currently increasing.

As shown in the above spectra, the higher the redshift, the higher the recessional velocity.

If the Universe is closed and finite, then

The density of the Universe is

The deuterium and lithium-7 in distant quasars and in the interstellar medium suggests that the Universe is open.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 14: Modern Cosmology

The redshifts of the galaxies imply that the Universe is expanding and that we are at the center.

Even if the Universe has no edge, it has a center.

In the late 1990's, it was discovered from distances of ___________ in distant galaxies that the expansion of the Universe is ___________.

If the Universe is closed, then its age will be

Which event occurred at a redshift around 1100?

The Universe contains _____________________.

The ___________ are theories that unify the electromagnetic, weak, and strong forces at extremely high energies.

The rate of expansion of the Universe is currently increasing.

As shown in the above spectra, the higher the redshift, the higher the recessional velocity.

If the Universe is closed and finite, then

The density of the Universe is

The deuterium and lithium-7 in distant quasars and in the interstellar medium suggests that the Universe is open.

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

In the late 1990's, it was discovered from distances of _ in distant galaxies that the expansion of the Universe is _.