Question 1

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 2

Our sister planet does not show plate tectonics on its surface to the degree our Earth does.What are possible explanations?

Accepted Answer

Perhaps the high temperature of the Venu

Question 3

Why does Venus appear so bright to the eye?

Accepted Answer

A) It gets closer to us than any other planet does. 
B) Venus is closer to the Sun, so gets more intense sunlight. 
C) The planet's cloud-cover is highly reflective, reflecting 60% of the Sun's light. 
D) As seen from Earth, the disk of Venus can appear larger than any other planet's. 
E) All of the above are correct. 
A) It gets closer to us than any other planet does. 
B) Venus is closer to the Sun, so gets more intense sunlight. 
C) The planet's cloud-cover is highly reflective, reflecting 60% of the Sun's light. 
D) As seen from Earth, the disk of Venus can appear larger than any other planet's. 
E) All of the above are correct.

Question 4

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.

Question 5

Venus has a feature named Aphrodite Terra. What is this feature?

Accepted Answer

A) a very large volcano 
B) a large impact crater 
C) a continental-sized plateau 
D) a large basin similar to the maria on the Moon 
E) a great rift valley like Valles Marineris on Mars 
A) a very large volcano 
B) a large impact crater 
C) a continental-sized plateau 
D) a large basin similar to the maria on the Moon 
E) a great rift valley like Valles Marineris on Mars

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

Most of the time, Venus is the third-brightest object in the sky.

Accepted Answer

A) True 
 B)False

Question 8

If Mars' atmosphere is mostly carbon dioxide, why isn't it as hot as Venus?

Accepted Answer

Although it has a carbon dioxi

Question 9

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 da

Question 10

Since its density is similar to ours, we think that Venus too has a core of ________.

Accepted Answer

The answer of Since its density is similar to ours,...

Question 11

The actual slow rotation of Venus was first found by radar observations from Earth.

Accepted Answer

A) True 
 B)False

Question 12

Describe how conditions on Venus have produced a runaway greenhouse effect.

Accepted Answer

Because of Venus's proximity to the Sun,

Question 13

Earth and Venus are often called sister planets; in which ways are they most alike?

Accepted Answer

A) atmospheric composition and density 
B) size, density, and surface gravity 
C) surface temperature and pressure 
D) cloud composition and meteorology 
E) polar caps and rusty red deserts 
A) atmospheric composition and density 
B) size, density, and surface gravity 
C) surface temperature and pressure 
D) cloud composition and meteorology 
E) polar caps and rusty red deserts

Question 14

Venus's full phase occurs when Venus is at:

Accepted Answer

A) opposition. 
B) the deferent. 
C) conjunction. 
D) inferior conjunction. 
E) superior conjunction. 
A) opposition. 
B) the deferent. 
C) conjunction. 
D) inferior conjunction. 
E) superior conjunction.

Question 15

Why will it be hard to determine the nature of Venus's 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's temperatures to pick up quakes. 
C) No photos have ever been returned from Venus's 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's temperatures to pick up quakes. 
C) No photos have ever been returned from Venus's 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 16

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...

Exam 9: Venus: Earths Sister Planet

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

Our sister planet does not show plate tectonics on its surface to the degree our Earth does.What are possible explanations?

Why does Venus appear so bright to the eye?

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

Venus has a feature named Aphrodite Terra. What is this feature?

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

Most of the time, Venus is the third-brightest object in the sky.

If Mars' atmosphere is mostly carbon dioxide, why isn't it as hot as Venus?

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

Since its density is similar to ours, we think that Venus too has a core of ________.

The actual slow rotation of Venus was first found by radar observations from Earth.

Describe how conditions on Venus have produced a runaway greenhouse effect.

Earth and Venus are often called sister planets; in which ways are they most alike?

Venus's full phase occurs when Venus is at:

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

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

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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