Question 1

Which of the Uranian moons displays the widest range of surface terrains,suggesting some catastrophic disruption?

Accepted Answer

A)  Puck 
B)  Umbriel 
C)  Oberon 
D)  Miranda 
E)  Ariel 
A)  Puck 
B)  Umbriel 
C)  Oberon 
D)  Miranda 
E)  Ariel

Question 2

The rings of Uranus and Neptune are found:

Accepted Answer

A)  by the Hubble Space Telescope. 
B)  above their equators. 
C)  in the ecliptic plane. 
D)  outside the Roche limit. 
E)  All of the above. 
A)  by the Hubble Space Telescope. 
B)  above their equators. 
C)  in the ecliptic plane. 
D)  outside the Roche limit. 
E)  All of the above.

Question 3

How might the odd tilt of Uranus have been produced?

Accepted Answer

As with the making of our Moon

Question 4

Radiation darkening is a likely explanation of:

Accepted Answer

A)  why Uranus' moons are less reflective than Saturn's. 
B)  the lack of distinct, visible bands in Uranus' atmosphere. 
C)  Uranus' extreme axial tilt. 
D)  the tilt of Uranus' magnetic field relative to the rotation axis. 
E)  why Uranus' rings are so much fainter than Saturn's. 
A)  why Uranus' moons are less reflective than Saturn's. 
B)  the lack of distinct, visible bands in Uranus' atmosphere. 
C)  Uranus' extreme axial tilt. 
D)  the tilt of Uranus' magnetic field relative to the rotation axis. 
E)  why Uranus' rings are so much fainter than Saturn's.

Question 5

Uranus' rotation axis is tipped over 98 degrees,so its magnetosphere is tipped over the same amount.

Accepted Answer

A) True 
 B)False

Question 6

About 50 years after Uranus was discovered:

Accepted Answer

A)  its rings were discovered. 
B)  the retrograde motion of its orbit was observed. 
C)  its orbit was too far off of its predicted path to be explained by observational errors. 
D)  it was discovered that it had more natural satellites than any other planet. 
E)  it was discovered that its atmosphere was featureless. 
A)  its rings were discovered. 
B)  the retrograde motion of its orbit was observed. 
C)  its orbit was too far off of its predicted path to be explained by observational errors. 
D)  it was discovered that it had more natural satellites than any other planet. 
E)  it was discovered that its atmosphere was featureless.

Question 7

William Herschel was the discoverer of Uranus.

Accepted Answer

A) True 
 B)False

Question 8

What will happen to Triton in the distant future,based on its present orbit?

Accepted Answer

Due to its retrograde orbit,it will spir

Question 9

Uranus and Neptune are often called twin worlds.How do their axial tilts differ?

Accepted Answer

At 98 degrees,Uranus is floppe

Question 10

The most abundant component of the atmospheres of Uranus and Neptune is:

Accepted Answer

A)  Hydrogen. 
B)  Helium. 
C)  Methane. 
D)  Ammonia. 
E)  Nitrogen. 
A)  Hydrogen. 
B)  Helium. 
C)  Methane. 
D)  Ammonia. 
E)  Nitrogen.

Question 11

The rotation period of Uranus was measured through:

Accepted Answer

A)  observations of the motions of its satellites. 
B)  observations of the features on its cloud surface. 
C)  observations of radio signals associated with its magnetosphere. 
D)  observations of its motion around the Sun. 
E)  observations of Neptune's motion around the Sun. 
A)  observations of the motions of its satellites. 
B)  observations of the features on its cloud surface. 
C)  observations of radio signals associated with its magnetosphere. 
D)  observations of its motion around the Sun. 
E)  observations of Neptune's motion around the Sun.

Question 12

The nitrogen geysers of Triton carry carbon grit into the winds of its atmosphere.

Accepted Answer

A) True 
 B)False

Question 13

Neptune and Uranus have a bluish tint because:

Accepted Answer

A)  at their distances, the Sun appears blue, the red absorbed by dust in the ecliptic. 
B)  they are far away and distance makes objects appear bluish. 
C)  their atmospheres contain methane, which absorbs red light. 
D)  their atmospheres contain hydrogen and helium. 
E)  ammonia ice reflects blue light better than any other color. 
A)  at their distances, the Sun appears blue, the red absorbed by dust in the ecliptic. 
B)  they are far away and distance makes objects appear bluish. 
C)  their atmospheres contain methane, which absorbs red light. 
D)  their atmospheres contain hydrogen and helium. 
E)  ammonia ice reflects blue light better than any other color.

Question 14

While often called twins,Uranus and Neptune still have significant differences.Discuss some of them.

Accepted Answer

In mass,Neptune is slightly heavier,even

Question 15

Adams and Leverrier both predicted the position of Neptune,based on its effects on:

Accepted Answer

A)  the Sun. 
B)  Jupiter. 
C)  Saturn. 
D)  Uranus. 
E)  Pluto. 
A)  the Sun. 
B)  Jupiter. 
C)  Saturn. 
D)  Uranus. 
E)  Pluto.

Question 16

Which of the following is true about the seasons on Uranus?

Accepted Answer

A)  The seasons on Uranus are not unlike those on Earth or Mars. 
B)  The Uranian rotation axis produces some extreme seasonal effects. 
C)  Like Jupiter, Uranus has little tilt, with its equator always facing the Sun. 
D)  From the Uranian equator, the Sun would remain stationary all the time. 
E)  Uranus' weather will become less turbulent as equinox approaches in 2049. 
A)  The seasons on Uranus are not unlike those on Earth or Mars. 
B)  The Uranian rotation axis produces some extreme seasonal effects. 
C)  Like Jupiter, Uranus has little tilt, with its equator always facing the Sun. 
D)  From the Uranian equator, the Sun would remain stationary all the time. 
E)  Uranus' weather will become less turbulent as equinox approaches in 2049.

Question 17

Unlike the other jovian planets,Uranus:

Accepted Answer

A)  has no ring system. 
B)  has only a few satellites. 
C)  has a featureless atmosphere. 
D)  has no internal energy source. 
E)  rotates slowly. 
A)  has no ring system. 
B)  has only a few satellites. 
C)  has a featureless atmosphere. 
D)  has no internal energy source. 
E)  rotates slowly.

Question 18

What is erupting out of the geysers on Triton?

Accepted Answer

A)  liquid water with basalt 
B)  liquid methane with a dark hydrocarbon slush 
C)  liquid nitrogen with carbon grit 
D)  liquid carbon dioxide with graphite 
E)  liquid hydrogen with dark helium ash 
A)  liquid water with basalt 
B)  liquid methane with a dark hydrocarbon slush 
C)  liquid nitrogen with carbon grit 
D)  liquid carbon dioxide with graphite 
E)  liquid hydrogen with dark helium ash

Question 19

William Herschel thought he had found a comet when he spotted the green disk of:

Accepted Answer

A)  Triton. 
B)  Uranus. 
C)  Neptune. 
D)  Titania. 
E)  Oberon. 
A)  Triton. 
B)  Uranus. 
C)  Neptune. 
D)  Titania. 
E)  Oberon.

Question 20

What is differential rotation,and what surprises did it have for us with Uranus?

Accepted Answer

Differential rotation means that differe

Exam 13: Uranus and Neptune: The Outer Worlds of the Solar System

Which of the Uranian moons displays the widest range of surface terrains,suggesting some catastrophic disruption?

The rings of Uranus and Neptune are found:

How might the odd tilt of Uranus have been produced?

Radiation darkening is a likely explanation of:

Uranus' rotation axis is tipped over 98 degrees,so its magnetosphere is tipped over the same amount.

About 50 years after Uranus was discovered:

William Herschel was the discoverer of Uranus.

What will happen to Triton in the distant future,based on its present orbit?

Uranus and Neptune are often called twin worlds.How do their axial tilts differ?

The most abundant component of the atmospheres of Uranus and Neptune is:

The rotation period of Uranus was measured through:

The nitrogen geysers of Triton carry carbon grit into the winds of its atmosphere.

Neptune and Uranus have a bluish tint because:

While often called twins,Uranus and Neptune still have significant differences.Discuss some of them.

Adams and Leverrier both predicted the position of Neptune,based on its effects on:

Which of the following is true about the seasons on Uranus?

Unlike the other jovian planets,Uranus:

What is erupting out of the geysers on Triton?

William Herschel thought he had found a comet when he spotted the green disk of:

What is differential rotation,and what surprises did it have for us with Uranus?

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

Venus: Earth's Sister Planet

Mars: A Near Miss for Life?

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

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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