Question 1

The absence of a magnetic field on Venus probably stems from its:

Accepted Answer

A)  nearness to the Sun. 
B)  extremely thick atmosphere. 
C)  slow rotation. 
D)  high surface temperatures. 
E)  lower density than Earth, suggesting an absence of an iron core. 
A)  nearness to the Sun. 
B)  extremely thick atmosphere. 
C)  slow rotation. 
D)  high surface temperatures. 
E)  lower density than Earth, suggesting an absence of an iron core. C

Question 2

As on Earth,continent-like land masses cover over a quarter of the surface of Venus.

Accepted Answer

A) True 
 B)False  False

Question 3

The surface temperature of Venus is 750K,even hotter than Mercury.

Accepted Answer

A) True 
 B)False  True

Question 4

Our best data about the surface topography of Venus has come from:

Accepted Answer

A)  Magellan radar data and radar observations of the planet from Earth. 
B)  spacecraft flybys like Mariner 2 and visual observations of the planet. 
C)  radio and visual observations. 
D)  orbiter photos from Pioneer Venus Orbiter. 
E)  the three flybys of Mariner 10. 
A)  Magellan radar data and radar observations of the planet from Earth. 
B)  spacecraft flybys like Mariner 2 and visual observations of the planet. 
C)  radio and visual observations. 
D)  orbiter photos from Pioneer Venus Orbiter. 
E)  the three flybys of Mariner 10.

Question 5

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

Accepted Answer

All small meteoroids burn up in the thic

Question 6

In its orbit about the Sun,when is Venus the brightest as seen from Earth? Why?

Accepted Answer

When it is a large crescent,about 36 day

Question 7

Venus is only a little bit (5%)smaller than Earth,and its density is only slightly less than Earth's.Therefore,its mass is:

Accepted Answer

A)  the same as Earth's. 
B)  just a little bit greater than Earth's. 
C)  much greater than Earth's (more than 20% different). 
D)  just a little bit less than Earth's. 
E)  much less than Earth's (more than 20% different). 
A)  the same as Earth's. 
B)  just a little bit greater than Earth's. 
C)  much greater than Earth's (more than 20% different). 
D)  just a little bit less than Earth's. 
E)  much less than Earth's (more than 20% different).

Question 8

Venus' rotation:

Accepted Answer

A)  is the fastest of the terrestrial planets. 
B)  is counterclockwise, like the other planets. 
C)  takes longer than its orbit around the Sun. 
D)  axis is highly tilted to its orbital plane, causing large seasonal changes. 
E)  is tidally locked to the Sun. 
A)  is the fastest of the terrestrial planets. 
B)  is counterclockwise, like the other planets. 
C)  takes longer than its orbit around the Sun. 
D)  axis is highly tilted to its orbital plane, causing large seasonal changes. 
E)  is tidally locked to the Sun.

Question 9

Which statement is true of Venus' 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. 
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.

Question 10

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 11

Magellan did NOT find which of these on Venus?

Accepted Answer

A)  impact craters, all larger than five kilometers across 
B)  large shield volcanoes 
C)  actual volcanic eruptions in progress 
D)  coronae, huge but very flat circular features 
E)  continent sized uplands 
A)  impact craters, all larger than five kilometers across 
B)  large shield volcanoes 
C)  actual volcanic eruptions in progress 
D)  coronae, huge but very flat circular features 
E)  continent sized uplands

Question 12

The Greenhouse Effect on Venus is due to ________ in its atmosphere.

Accepted Answer

The answer of The Greenhouse Effect on Venus is due...

Question 13

Our most detailed maps of Venus come from:

Accepted Answer

A)  the Magellan space probe. 
B)  the Hubble Space Telescope. 
C)  direct observation from Earth based optical telescopes. 
D)  manned landings. 
E)  Earth based radio telescopes. 
A)  the Magellan space probe. 
B)  the Hubble Space Telescope. 
C)  direct observation from Earth based optical telescopes. 
D)  manned landings. 
E)  Earth based radio telescopes.

Question 14

The highest peak on Venus is called:

Accepted Answer

A)  Shif. 
B)  Gula. 
C)  Cleopatra. 
D)  Maxwell. 
E)  Lakshmi. 
A)  Shif. 
B)  Gula. 
C)  Cleopatra. 
D)  Maxwell. 
E)  Lakshmi.

Question 15

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. 
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.

Question 16

The main problem spacecraft have encountered in landing on Venus is:

Accepted Answer

A)  the thick atmosphere. 
B)  the acid rain. 
C)  the strong winds. 
D)  the rocky surface. 
E)  the extremely high temperatures. 
A)  the thick atmosphere. 
B)  the acid rain. 
C)  the strong winds. 
D)  the rocky surface. 
E)  the extremely high temperatures.

Question 17

The reason that the atmosphere of Venus is over 95% carbon dioxide is thought to be because:

Accepted Answer

A)  Venus was much hotter than Earth when its atmosphere formed. 
B)  the early plant life on Venus produced the excess carbon dioxide and consumed the oxygen. 
C)  life on Earth formed earlier than on Venus. 
D)  the part of the solar nebula where Venus formed contained more carbon dioxide than the part where Earth formed. 
E)  Venus' Greenhouse Effect got out of control and became runaway after its oceans of sulfuric acid evaporated. 
A)  Venus was much hotter than Earth when its atmosphere formed. 
B)  the early plant life on Venus produced the excess carbon dioxide and consumed the oxygen. 
C)  life on Earth formed earlier than on Venus. 
D)  the part of the solar nebula where Venus formed contained more carbon dioxide than the part where Earth formed. 
E)  Venus' Greenhouse Effect got out of control and became runaway after its oceans of sulfuric acid evaporated.

Question 18

Why will it be hard to determine the nature of Venus' interior?

Accepted Answer

A)  No orbiter has been able to find the exact mass of Venus. 
B)  No seismograph can last long enough at Venus' temperatures to pick up quakes. 
C)  No photos have ever been returned from Venus' surface. 
D)  The clouds prevent us from finding the exact diameter and volume of Venus. 
E)  The magnetic field of Venus is much stronger than our own. 
A)  No orbiter has been able to find the exact mass of Venus. 
B)  No seismograph can last long enough at Venus' temperatures to pick up quakes. 
C)  No photos have ever been returned from Venus' surface. 
D)  The clouds prevent us from finding the exact diameter and volume of Venus. 
E)  The magnetic field of Venus is much stronger than our own.

Question 19

While it has some high volcanoes,most of Venus is relatively ________ in elevation.

Accepted Answer

The answer of While it has some high volcanoes,most of...

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 9: Venus: Earth's Sister Planet

The absence of a magnetic field on Venus probably stems from its:

As on Earth,continent-like land masses cover over a quarter of the surface of Venus.

The surface temperature of Venus is 750K,even hotter than Mercury.

Our best data about the surface topography of Venus has come from:

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

In its orbit about the Sun,when is Venus the brightest as seen from Earth? Why?

Venus is only a little bit (5%)smaller than Earth,and its density is only slightly less than Earth's.Therefore,its mass is:

Venus' rotation:

Which statement is true of Venus' surface?

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

Magellan did NOT find which of these on Venus?

The Greenhouse Effect on Venus is due to ________ in its atmosphere.

Our most detailed maps of Venus come from:

The highest peak on Venus is called:

The surface of Venus can be observed with:

The main problem spacecraft have encountered in landing on Venus is:

The reason that the atmosphere of Venus is over 95% carbon dioxide is thought to be because:

Why will it be hard to determine the nature of Venus' interior?

While it has some high volcanoes,most of Venus is relatively ________ in elevation.

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

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Radiation: Information from the Cosmos

Spectroscopy: The Inner Workings of Atoms

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

Earth: Our Home in Space

The Moon and Mercury: Scorched and Battered Worlds

Mars: A Near Miss for Life?

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

Exoplanets: Planetary Systems Beyond Our Own

The Sun: Our Parent Star

The Stars: Giants,Dwarfs,and the Main Sequence

The Interstellar Medium: Gas and Dust among the Stars

Star Formation: A Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae,Supernovae,and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: A Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone?

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