Question 1

Is the large crater shown on the bottom left older or younger than the smooth, dark, circular crater in the upper right?

Accepted Answer

A)  older 
B)  younger 
C)  neither older nor younger, they are the same age 
D)  cannot determine which is older or younger 
A)  older 
B)  younger 
C)  neither older nor younger, they are the same age 
D)  cannot determine which is older or younger

Question 2

The graph below plots the escape velocity of each planet along the vertical axis and its surface temperature along the horizontal. The lines plotted in the figure are the average speeds of gas particles as a function of temperature for various gases. Which of the planets or satellite plotted in this diagram has the greatest escape velocity?
​  
​

Accepted Answer

A)  Mars 
B)  the Moon 
C)  Mercury 
D)  Venus 
E)  Earth 
A)  Mars 
B)  the Moon 
C)  Mercury 
D)  Venus 
E)  Earth

Question 3

Flow channels on Venus suggest it was once rich in water.

Accepted Answer

A) True 
 B)False

Question 4

What is the arrow in the above photo pointing to on the surface of Mercury?

Accepted Answer

A)  mountain 
B)  valley 
C)  crater 
D)  scarp 
A)  mountain 
B)  valley 
C)  crater 
D)  scarp

Question 5

Most terrestrial planets have portions of their surface that appear to be significantly older than other portions of their surface. What evidence suggests that the surface of Venus is all of the same age?

Accepted Answer

A)  Photos taken by probes that landed on Venus showed that all of the rocks were of the same age. 
B)  The craters on Venus are randomly distributed in size and number across the surface. 
C)  The volcanoes on Venus are not found in isolated groups, but are scattered around the planet. 
D)  Photos taken by probes that landed on Venus showed that all of the rocks were of the same age and the craters on Venus are randomly distributed in size and number across the surface. 
E)  Photos taken by probes that landed on Venus showed that all of the rocks were of the same age, all of the rocks were of the same age and the craters on Venus are randomly distributed in size and number across the surface, and the volcanoes on Venus are not found in isolated groups, but are scattered around the planet. 
A)  Photos taken by probes that landed on Venus showed that all of the rocks were of the same age. 
B)  The craters on Venus are randomly distributed in size and number across the surface. 
C)  The volcanoes on Venus are not found in isolated groups, but are scattered around the planet. 
D)  Photos taken by probes that landed on Venus showed that all of the rocks were of the same age and the craters on Venus are randomly distributed in size and number across the surface. 
E)  Photos taken by probes that landed on Venus showed that all of the rocks were of the same age, all of the rocks were of the same age and the craters on Venus are randomly distributed in size and number across the surface, and the volcanoes on Venus are not found in isolated groups, but are scattered around the planet.

Question 6

What evidence do we have that the surface of Mars has never divided into moving plates?

Accepted Answer

​ 
The vast size of Olympus Mo

Question 7

Venus is most like Earth in terms of size.

Accepted Answer

A) True 
 B)False

Question 8

One hypothesis suggested to explain the uniform age of the surface of Venus is that

Accepted Answer

A)  Venus's surface is 4 billion years old and has not been affected by flooding or slow evolution. 
B)  Venus's surface is made of rocks that are much harder than Earth's and thus last longer. 
C)  Venus periodically goes through a catastrophic melting of its entire surface. 
D)  Venus's clouds protect it from meteorites so that very few impacts occur to change its surface. 
E)  dust storms deposit large amount of dust on the surface, making it appear of uniform age. 
A)  Venus's surface is 4 billion years old and has not been affected by flooding or slow evolution. 
B)  Venus's surface is made of rocks that are much harder than Earth's and thus last longer. 
C)  Venus periodically goes through a catastrophic melting of its entire surface. 
D)  Venus's clouds protect it from meteorites so that very few impacts occur to change its surface. 
E)  dust storms deposit large amount of dust on the surface, making it appear of uniform age.

Question 9

The daytime surface temperature of Mercury is higher than Earth's Moon's surface temperature because

Accepted Answer

A)  clouds shield the Earth's Moon during the day. 
B)  Mercury is farther from the Sun than the Earth's Moon. 
C)  Mercury is closer to the Sun than the Earth's Moon. 
D)  the atmosphere of the Earth's Moon has a strong greenhouse effect. 
A)  clouds shield the Earth's Moon during the day. 
B)  Mercury is farther from the Sun than the Earth's Moon. 
C)  Mercury is closer to the Sun than the Earth's Moon. 
D)  the atmosphere of the Earth's Moon has a strong greenhouse effect.

Question 10

What physical property of Venus is vastly dissimilar compared to Earth?

Accepted Answer

A)  radius 
B)  mass 
C)  density 
D)  surface temperature 
A)  radius 
B)  mass 
C)  density 
D)  surface temperature

Question 11

What evidence do we have that Mars once had a thicker atmosphere?

Accepted Answer

Liquid water cannot exist now on the Mar

Question 12

The graph below plots the escape velocity of each planet along the vertical axis and its surface temperature along the horizontal. The lines plotted in the figure are the average speeds of gas particles as a function of temperature for various gases. Which of the planets or satellite plotted in this diagram is least able to hold an atmosphere?
​  
​

Accepted Answer

A)  Mars 
B)  the Moon 
C)  Mercury 
D)  Venus 
E)  Earth 
A)  Mars 
B)  the Moon 
C)  Mercury 
D)  Venus 
E)  Earth

Question 13

Venus is very hot because its atmosphere is rich in carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 14

What factors determine the rate of loss of gases from a planet's atmosphere?

Accepted Answer

A low escape velocity makes it easier fo

Question 15

Mercury is mostly comprised of a large metallic core.

Accepted Answer

A) True 
 B)False

Question 16

Mercury is thought to have shrunk when it for forming.

Accepted Answer

A) True 
 B)False

Question 17

The terrestrial planet with the most effective greenhouse effect is ____________________.

Accepted Answer

The answer of The terrestrial planet with the most effective...

Question 18

How did the four-stage history of Mars differ from that of Earth?

Accepted Answer

The four-stage history of Mars is a case

Question 19

How is the rotation of Venus different from that of other terrestrial planets?

Accepted Answer

Venus's ro

Question 20

The greenhouse effect occurs because carbon dioxide is opaque to infrared radiation.

Accepted Answer

A) True 
 B)False

Is the large crater shown on the bottom left older or younger than the smooth, dark, circular crater in the upper right?

Flow channels on Venus suggest it was once rich in water.

What is the arrow in the above photo pointing to on the surface of Mercury?

Most terrestrial planets have portions of their surface that appear to be significantly older than other portions of their surface. What evidence suggests that the surface of Venus is all of the same age?

What evidence do we have that the surface of Mars has never divided into moving plates?

Venus is most like Earth in terms of size.

One hypothesis suggested to explain the uniform age of the surface of Venus is that

The daytime surface temperature of Mercury is higher than Earth's Moon's surface temperature because

What physical property of Venus is vastly dissimilar compared to Earth?

What evidence do we have that Mars once had a thicker atmosphere?

Venus is very hot because its atmosphere is rich in carbon dioxide.

What factors determine the rate of loss of gases from a planet's atmosphere?

Mercury is mostly comprised of a large metallic core.

Mercury is thought to have shrunk when it for forming.

The terrestrial planet with the most effective greenhouse effect is ____________________.

How did the four-stage history of Mars differ from that of Earth?

How is the rotation of Venus different from that of other terrestrial planets?

The greenhouse effect occurs because carbon dioxide is opaque to infrared radiation.

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

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

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Exam 17: Mercury, Venus, and Mars

Is the large crater shown on the bottom left older or younger than the smooth, dark, circular crater in the upper right?

Flow channels on Venus suggest it was once rich in water.

What is the arrow in the above photo pointing to on the surface of Mercury?

Most terrestrial planets have portions of their surface that appear to be significantly older than other portions of their surface. What evidence suggests that the surface of Venus is all of the same age?

What evidence do we have that the surface of Mars has never divided into moving plates?

Venus is most like Earth in terms of size.

One hypothesis suggested to explain the uniform age of the surface of Venus is that

The daytime surface temperature of Mercury is higher than Earth's Moon's surface temperature because

What physical property of Venus is vastly dissimilar compared to Earth?

What evidence do we have that Mars once had a thicker atmosphere?

Venus is very hot because its atmosphere is rich in carbon dioxide.

What factors determine the rate of loss of gases from a planet's atmosphere?

Mercury is mostly comprised of a large metallic core.

Mercury is thought to have shrunk when it for forming.

The terrestrial planet with the most effective greenhouse effect is ____________________.

How did the four-stage history of Mars differ from that of Earth?

How is the rotation of Venus different from that of other terrestrial planets?

The greenhouse effect occurs because carbon dioxide is opaque to infrared radiation.

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

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters