Question 1

Why are the moons and rings of Uranus and Neptune believed to be dark?

Accepted Answer

Radiation striking ice produce

Question 2

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

Accepted Answer

A) Jupiter. 
B) the Sun. 
C) Saturn's rings. 
D) Uranus. 
E) Triton. 
A) Jupiter. 
B) the Sun. 
C) Saturn's rings. 
D) Uranus. 
E) Triton.

Question 3

The large axial tilt of Uranus is believed to have been caused by ________ catastrophicevent(s), such as collision(s).

Accepted Answer

The answer of The large axial tilt of Uranus is...

Question 4

A day at the north pole of Uranus lasts:

Accepted Answer

A) about 7 hours. 
B) about 8 hours. 
C) about 21 years. 
D) about 42 years. 
E) about 84 years. 
A) about 7 hours. 
B) about 8 hours. 
C) about 21 years. 
D) about 42 years. 
E) about 84 years.

Question 5

The cantaloupe-like terrain of Triton is tectonic in origin, much like the grooved terrain ofGanymede and Enceladus.

Accepted Answer

A) True 
 B)False

Question 6

We see differential rotation at Uranus and Neptune such that the equator is moving slowerthan higher latitudes.

Accepted Answer

A) True 
 B)False

Question 7

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 8

The planet Uranus is:

Accepted Answer

A) easily visible with the naked eye. 
B) barely visible with the naked eye. 
C) only visible with a small telescope or binoculars. 
D) only visible with a large, high quality telescope. 
E) only visible with a space-based telescope. 
A) easily visible with the naked eye. 
B) barely visible with the naked eye. 
C) only visible with a small telescope or binoculars. 
D) only visible with a large, high quality telescope. 
E) only visible with a space-based telescope.

Question 9

The clearest images of Uranus shown in the text have been obtained using:

Accepted Answer

A) the Hubble Space Telescope. 
B) infrared ground-based telescopes at the Keck Observatory. 
C) the Pioneer Spacecraft. 
D) the Cassini Spacecraft. 
E) visible light ground-based telescopes at the European Southern Observatory. 
A) the Hubble Space Telescope. 
B) infrared ground-based telescopes at the Keck Observatory. 
C) the Pioneer Spacecraft. 
D) the Cassini Spacecraft. 
E) visible light ground-based telescopes at the European Southern Observatory.

Question 10

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's 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's weather will become less turbulent as equinox approaches in 2049.

Question 11

Orange-red spots seen on Uranus are due to:

Accepted Answer

A) high altitude clouds with sulfur compounds. 
B) low altitude clouds with compounds. 
C) high altitude water clouds. 
D) low altitude water clouds. 
E) mid altitude methane clouds. 
A) high altitude clouds with sulfur compounds. 
B) low altitude clouds with compounds. 
C) high altitude water clouds. 
D) low altitude water clouds. 
E) mid altitude methane clouds.

Question 12

Why is it believed that more than one event, such as a collision, led to Uranus's extreme axialtilt?

Accepted Answer

A single event would not have

Question 13

On which planet can the pole remain in darkness for 42 years, and then have 42 years ofconstant daylight?

Accepted Answer

A) Jupiter 
B) Saturn 
C) Uranus 
D) Neptune 
E) Pluto 
A) Jupiter 
B) Saturn 
C) Uranus 
D) Neptune 
E) Pluto

Question 14

The time between equinoxes on Uranus is about:

Accepted Answer

A) 7 hours. 
B) 8 hours. 
C) 21 years. 
D) 42 years. 
E) 84 years. 
A) 7 hours. 
B) 8 hours. 
C) 21 years. 
D) 42 years. 
E) 84 years.

Question 15

In addition to Saturn's Titan, which other moon has a nitrogen atmosphere?

Accepted Answer

A) Jupiter's Europa 
B) Uranus's Titania 
C) Neptune's Triton 
D) Jupiter's Ganymede 
E) Pluto's Charon 
A) Jupiter's Europa 
B) Uranus's Titania 
C) Neptune's Triton 
D) Jupiter's Ganymede 
E) Pluto's Charon

Question 16

The observed temperature difference between the northern and southern hemispheres ofUranus:

Accepted Answer

A) is dozens of Kelvins. 
B) is hundreds of Kelvins. 
C) varies greatly. 
D) is about 10 Kelvin. 
A) is dozens of Kelvins. 
B) is hundreds of Kelvins. 
C) varies greatly. 
D) is about 10 Kelvin.

Question 17

Uranus's large axial tilt is thought to be the result of:

Accepted Answer

A) the same orbital irregularities that led to the discovery of Neptune. 
B) a single collision or impact event early in the solar system's history. 
C) the captures of one or more of Uranus's moons. 
D) giant planet migration. 
E) multiple catastrophic events, such as glancing collisions. 
A) the same orbital irregularities that led to the discovery of Neptune. 
B) a single collision or impact event early in the solar system's history. 
C) the captures of one or more of Uranus's moons. 
D) giant planet migration. 
E) multiple catastrophic events, such as glancing collisions.

Question 18

In what ways are the magnetic fields of Uranus and Neptune unusual?

Accepted Answer

Unlike the magnetic fields of Earth, Jup

Question 19

Our most detailed knowledge of Uranus and Neptune comes from:

Accepted Answer

A) spacecraft exploration. 
B) the Hubble Space Telescope. 
C) ground-based visual telescopes. 
D) ground-based radio telescopes. 
E) manned missions. 
A) spacecraft exploration. 
B) the Hubble Space Telescope. 
C) ground-based visual telescopes. 
D) ground-based radio telescopes. 
E) manned missions.

Question 20

The unique feature of Neptune is:

Accepted Answer

A) that its rotational axis is tilted 98 degrees. 
B) that it rotates in a retrograde sense. 
C) that its atmosphere rotates more slowly than its interior. 
D) that it has no ring system. 
E) its banded cloud surface. 
A) that its rotational axis is tilted 98 degrees. 
B) that it rotates in a retrograde sense. 
C) that its atmosphere rotates more slowly than its interior. 
D) that it has no ring system. 
E) its banded cloud surface.

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

Why are the moons and rings of Uranus and Neptune believed to be dark?

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

The large axial tilt of Uranus is believed to have been caused by ________ catastrophicevent(s), such as collision(s).

A day at the north pole of Uranus lasts:

The cantaloupe-like terrain of Triton is tectonic in origin, much like the grooved terrain ofGanymede and Enceladus.

We see differential rotation at Uranus and Neptune such that the equator is moving slowerthan higher latitudes.

The rotation period of Uranus was measured through:

The planet Uranus is:

The clearest images of Uranus shown in the text have been obtained using:

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

Orange-red spots seen on Uranus are due to:

Why is it believed that more than one event, such as a collision, led to Uranus's extreme axialtilt?

On which planet can the pole remain in darkness for 42 years, and then have 42 years ofconstant daylight?

The time between equinoxes on Uranus is about:

In addition to Saturn's Titan, which other moon has a nitrogen atmosphere?

The observed temperature difference between the northern and southern hemispheres ofUranus:

Uranus's large axial tilt is thought to be the result of:

In what ways are the magnetic fields of Uranus and Neptune unusual?

Our most detailed knowledge of Uranus and Neptune comes from:

The unique feature of Neptune is:

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: Earths 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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