Question 1

Mercury's rapid cooling is responsible for its:

Accepted Answer

A)  pronounced differentiation. 
B)  magnetic field. 
C)  linear cliff systems. 
D)  all of the above. 
A)  pronounced differentiation. 
B)  magnetic field. 
C)  linear cliff systems. 
D)  all of the above.

Question 2

Which planet rotates in the opposite direction from which it orbits the Sun?

Accepted Answer

A)  Jupiter 
B)  Mars 
C)  Neptune 
D)  Venus 
A)  Jupiter 
B)  Mars 
C)  Neptune 
D)  Venus

Question 3

How does the massive Olympus Mons volcano on Mars show that Mars does not undergo plate tectonics?

Accepted Answer

If the crust were in motion,it

Question 4

Planetary scientists have had difficulty understanding Venus's internal structure because it:

Accepted Answer

A)  has not been geologically active. 
B)  rotates slowly. 
C)  has no moons. 
D)  has no cratering. 
A)  has not been geologically active. 
B)  rotates slowly. 
C)  has no moons. 
D)  has no cratering.

Question 5

The figure below shows snapshots of a planet along its orbit around a star.This planet is experiencing changes in its:

Accepted Answer

A)  eccentricity. 
B)  obliquity. 
C)  inclination. 
D)  oblateness. 
A)  eccentricity. 
B)  obliquity. 
C)  inclination. 
D)  oblateness.

Question 6

How does the time required for a planet to lose its internal energy depend on its radius? Why?

Accepted Answer

The total energy is proportion

Question 7

Why did Mars become significantly less habitable about 500 million years after its formation?

Accepted Answer

The interior cooled rapidly,because Mars

Question 8

Venus has very little water in its atmosphere in part because of:

Accepted Answer

A)  chemical reactions in the cloud layer. 
B)  the rarity of asteroid and comet impacts on Venus. 
C)  its initial composition. 
D)  the solar wind. 
A)  chemical reactions in the cloud layer. 
B)  the rarity of asteroid and comet impacts on Venus. 
C)  its initial composition. 
D)  the solar wind.

Question 9

Why does Mercury have a thin layer of hydrogen and helium as an atmosphere?

Accepted Answer

A)  Other elements move fast enough to escape Mercury's gravity. 
B)  Mercury temporarily traps solar wind particles. 
C)  These are outgassed by rocks in Mercury's crust. 
D)  These gases are released during impacts with comets. 
A)  Other elements move fast enough to escape Mercury's gravity. 
B)  Mercury temporarily traps solar wind particles. 
C)  These are outgassed by rocks in Mercury's crust. 
D)  These gases are released during impacts with comets.

Question 10

What geographic features on Mars provide evidence for water on Mars?

Accepted Answer

Runoff channels are long,meand

Mercury's rapid cooling is responsible for its:

Which planet rotates in the opposite direction from which it orbits the Sun?

How does the massive Olympus Mons volcano on Mars show that Mars does not undergo plate tectonics?

Planetary scientists have had difficulty understanding Venus's internal structure because it:

The figure below shows snapshots of a planet along its orbit around a star.This planet is experiencing changes in its:

How does the time required for a planet to lose its internal energy depend on its radius? Why?

Why did Mars become significantly less habitable about 500 million years after its formation?

Venus has very little water in its atmosphere in part because of:

Why does Mercury have a thin layer of hydrogen and helium as an atmosphere?

What geographic features on Mars provide evidence for water on Mars?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Home Base: Earth and Moon

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Cosmology

Filters

Exam 7: Sibling Worlds: Mercury, Venus, and Mars

Mercury's rapid cooling is responsible for its:

Which planet rotates in the opposite direction from which it orbits the Sun?

How does the massive Olympus Mons volcano on Mars show that Mars does not undergo plate tectonics?

Planetary scientists have had difficulty understanding Venus's internal structure because it:

The figure below shows snapshots of a planet along its orbit around a star.This planet is experiencing changes in its:

How does the time required for a planet to lose its internal energy depend on its radius? Why?

Why did Mars become significantly less habitable about 500 million years after its formation?

Venus has very little water in its atmosphere in part because of:

Why does Mercury have a thin layer of hydrogen and helium as an atmosphere?

What geographic features on Mars provide evidence for water on Mars?

Getting Started: Science, astronomy, and Being Human

A Universe Made, a Universe Discovered

A Universe of Universal Laws

A Universe of Universal Laws

The Architecture and Birth of Planetary Systems

Home Base: Earth and Moon

Gas, ice, and Stone: the Outer Planets

Life and the Search for Habitable Worlds

The Sun As a Star

Measuring the Stars: the Main Sequence and Its Meaning

Nursery of the Stars: the Interstellar Medium and Star Formation

To the Graveyard of Stars: the End Points of Stellar Evolution

Down the Rabbit Hole: Relativity and Black Holes

Our City of Stars: the Milky Way

A Universe of Galaxies

The Cosmic Web: the Large-Scale Structure of the Universe

Cosmology

Filters