Question 1

Venus's surface temperature is fairly uniform, hot on both day and night sides.

Accepted Answer

A) True 
 B)False

Question 2

What is the composition of the clouds of Venus?

Accepted Answer

A)  water, like Earth's clouds
B)  frozen carbon dioxide, as on Mars
C)  a combination of ammonia and methane, like Uranus
D)  sulfur and sulfuric acid droplets
E)  hydrogen sulfide and ammoniaF) None of the above
G) C) and D)

Question 3

How does the rotation of Venus's clouds compare to the rotation of its surface?

Accepted Answer

The clouds...

Question 4

A characteristic of shield volcanoes is the formation of a crater at the summit which occurswhen:

Accepted Answer

A)  the volcano erupts explosively.
B)  the lava withdraws and the surface collapses.
C)  the lava flows melt through the thin crust of the peak.
D)  the underlying hot spot suddenly turns on.
E)  the volcano is impacted by a large meteorite.F) B) and E)
G) B) and D)

Question 5

Discuss the evidence that suggests that Venus is still very active volcanically.

Accepted Answer

There are hundreds of volcanoes on the s...

Question 6

Contrast the compositions and heights of the clouds of Earth and Venus.

Accepted Answer

Our weather and clouds of water droplets...

Question 7

The atmospheric pressure on Venus:

Accepted Answer

A)  shows an extreme change with the seasons.
B)  is much lower than on Earth.
C)  is about the same as on Mercury.
D)  is much higher than on Earth.
E)  causes variations in surface temperature.F) A) and B)
G) A) and D)

Question 8

Comparing the clouds of Earth and Venus, we find that:

Accepted Answer

A)  both are made chiefly of water vapor.
B)  ours lie in the troposphere, within 10 kilometers of our surface, but Venus has a highertroposphere, with its clouds about 40 kilometers high.
C)  like ours, they rotate around Venus slower than Venus rotates on its axis.
D)  Venus has much more carbon dioxide, so dry ice clouds dominate.
E)  Venus is too hot for clouds to form, so we see only a barren world telescopically.F) B) and D)
G) None of the above

Question 9

Discuss the fate of meteoroids upon entering the atmosphere of Venus. How do the impactcraters found on the surface support this idea? How are the numbers of impact craters affected byvolcanism?

Accepted Answer

All small meteoroids burn up in the thic...

Question 10

Like our own, the magnetic field of Venus has been seen to reverse polarity.

Accepted Answer

A) True 
 B)False

Question 11

Venus's temperature is fairly uniform over the entire planet, both day and night.

Accepted Answer

A) True 
 B)False

Question 12

What is thought to have caused the craters on Venus?

Accepted Answer

A)  Most are volcanic in origin; some are due to meteoritic impacts.
B)  As in the case of Mercury, all the craters are due to meteorite impacts.
C)  Because meteorites cannot survive passing through the atmosphere of Venus, all craters mustbe volcanic.
D)  Venus has very few craters and their origin is not known.
E)  Venus's craters originated during differentiation.F) A) and C)
G) A) and D)

Question 13

What percentage of the surface of Venus could be characterized as continental-sizedhighlands?

Accepted Answer

A)  less than 10%
B)  about 30%, like the Earth
C)  45%
D)  75%
E)  100%F) C) and D)
G) B) and E) A

Question 14

The surface of Venus can be observed with:

Accepted Answer

A)  the Mt. Wilson 100" telescope.
B)  radar observations from Arecibo.
C)  most amateur telescopes.
D)  the Hubble Space Telescope.
E)  All of these have provided detailed observations about the surface of our sister planet.F) B) and E)
G) A) and C)

Question 15

Through radar observations it was found that Venus's:

Accepted Answer

A)  orbit around the Sun is speeding up.
B)  atmosphere is changing rapidly.
C)  rotation on its axis is retrograde.
D)  orbit around the Sun is in the clockwise sense.
E)  orbital period is 243 days.F) C) and D)
G) B) and C)

Question 16

The clouds of Earth often generate rain storms on the Earth's surface. Is this true of Venus?Why or why not?

Accepted Answer

The sulfuric acid droplets from Venus's clouds are evaporated before they can reach thesurface, so the last 20 miles or so down to the surface is surprisingly clear. The greenhouse effectkeeps the surface too hot for any common liquid to exist there, but you might find pools ofmolten lead in places.

Question 17

No evidence of impact craters has been found on Venus.

Accepted Answer

A) True 
 B)False

Question 18

How was the true rotation rate of Venus determined? Why does this make study of theVenusian surface hard for observers on Earth?

Accepted Answer

Radar studies of Venus finally determined that Venus's rotation rate is 243 days,retrograde. Studies of its entire surface from Earth, using radar, is complicated by the fact thatalmost the same face of Venus appears pointed towards Earth when the two planets are closest.

Question 19

Why is the atmospheric pressure at the surface of Venus so much higher than Earth's?

Accepted Answer

The atmosphere is much more ma...

Question 20

Which statement is true of Venus's surface?

Accepted Answer

A)  It has remained unchanged for billions of years.
B)  Atmospheric pressure is very low.
C)  There is an extensive hydrosphere.
D)  There are no shield volcanoes.
E)  There are two continent-sized uplands.F) C) and E)
G) A) and D)

Exam 9: Venus: Earths Sister Planet

Venus's surface temperature is fairly uniform, hot on both day and night sides.

Correct Answer
verified

What is the composition of the clouds of Venus?

Correct Answer
verified

How does the rotation of Venus's clouds compare to the rotation of its surface?

Correct Answer
verified
The clouds...
View Answer

A characteristic of shield volcanoes is the formation of a crater at the summit which occurswhen:

Correct Answer
verified

Discuss the evidence that suggests that Venus is still very active volcanically.

Correct Answer
verified
There are hundreds of volcanoes on the s...
View Answer

Contrast the compositions and heights of the clouds of Earth and Venus.

Correct Answer
verified
Our weather and clouds of water droplets...
View Answer

The atmospheric pressure on Venus:

Correct Answer
verified

Comparing the clouds of Earth and Venus, we find that:

Correct Answer
verified

Discuss the fate of meteoroids upon entering the atmosphere of Venus. How do the impactcraters found on the surface support this idea? How are the numbers of impact craters affected byvolcanism?

Correct Answer
verified
All small meteoroids burn up in the thic...
View Answer

Like our own, the magnetic field of Venus has been seen to reverse polarity.

Correct Answer
verified

Venus's temperature is fairly uniform over the entire planet, both day and night.

Correct Answer
verified

What is thought to have caused the craters on Venus?

Correct Answer
verified

What percentage of the surface of Venus could be characterized as continental-sizedhighlands?

Correct Answer
verified
A

The surface of Venus can be observed with:

Correct Answer
verified

Through radar observations it was found that Venus's:

Correct Answer
verified

The clouds of Earth often generate rain storms on the Earth's surface. Is this true of Venus?Why or why not?

No evidence of impact craters has been found on Venus.

Correct Answer
verified

How was the true rotation rate of Venus determined? Why does this make study of theVenusian surface hard for observers on Earth?

Correct Answer
verified
Radar studies of Venus finally determined that Venus's rotation rate is 243 days,retrograde. Studies of its entire surface from Earth, using radar, is complicated by the fact thatalmost the same face of Venus appears pointed towards Earth when the two planets are closest.

Why is the atmospheric pressure at the surface of Venus so much higher than Earth's?

Correct Answer
verified
The atmosphere is much more ma...
View Answer

Which statement is true of Venus's surface?

Correct Answer
verified

Exam 9: Venus: Earths Sister Planet

Venus's surface temperature is fairly uniform, hot on both day and night sides.

Correct AnswerverifiedShow Answer

What is the composition of the clouds of Venus?

Correct AnswerverifiedShow Answer

How does the rotation of Venus's clouds compare to the rotation of its surface?

Correct AnswerverifiedThe clouds...View AnswerShow Answer

A characteristic of shield volcanoes is the formation of a crater at the summit which occurswhen:

Correct AnswerverifiedShow Answer

Discuss the evidence that suggests that Venus is still very active volcanically.

Correct AnswerverifiedThere are hundreds of volcanoes on the s...View AnswerShow Answer

Contrast the compositions and heights of the clouds of Earth and Venus.

Correct AnswerverifiedOur weather and clouds of water droplets...View AnswerShow Answer

The atmospheric pressure on Venus:

Correct AnswerverifiedShow Answer

Comparing the clouds of Earth and Venus, we find that:

Correct AnswerverifiedShow Answer

Discuss the fate of meteoroids upon entering the atmosphere of Venus. How do the impactcraters found on the surface support this idea? How are the numbers of impact craters affected byvolcanism?

Correct AnswerverifiedAll small meteoroids burn up in the thic...View AnswerShow Answer

Like our own, the magnetic field of Venus has been seen to reverse polarity.

Correct AnswerverifiedShow Answer

Venus's temperature is fairly uniform over the entire planet, both day and night.

Correct AnswerverifiedShow Answer

What is thought to have caused the craters on Venus?

Correct AnswerverifiedShow Answer

What percentage of the surface of Venus could be characterized as continental-sizedhighlands?

Correct AnswerverifiedA

The surface of Venus can be observed with:

Correct AnswerverifiedShow Answer

Through radar observations it was found that Venus's:

Correct AnswerverifiedShow Answer

The clouds of Earth often generate rain storms on the Earth's surface. Is this true of Venus?Why or why not?

No evidence of impact craters has been found on Venus.

Correct AnswerverifiedShow Answer

How was the true rotation rate of Venus determined? Why does this make study of theVenusian surface hard for observers on Earth?

Correct AnswerverifiedRadar studies of Venus finally determined that Venus's rotation rate is 243 days,retrograde. Studies of its entire surface from Earth, using radar, is complicated by the fact thatalmost the same face of Venus appears pointed towards Earth when the two planets are closest.

Why is the atmospheric pressure at the surface of Venus so much higher than Earth's?

Correct AnswerverifiedThe atmosphere is much more ma...View AnswerShow Answer

Which statement is true of Venus's surface?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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The clouds...
View Answer

Correct Answer
verified

Correct Answer
verified
There are hundreds of volcanoes on the s...
View Answer

Correct Answer
verified
Our weather and clouds of water droplets...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
All small meteoroids burn up in the thic...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Radar studies of Venus finally determined that Venus's rotation rate is 243 days,retrograde. Studies of its entire surface from Earth, using radar, is complicated by the fact thatalmost the same face of Venus appears pointed towards Earth when the two planets are closest.

Correct Answer
verified
The atmosphere is much more ma...
View Answer

Correct Answer
verified