Question 1

At the poles of Uranus, there are ________ years of constant daylight, then the same length oftime of constant darkness.

Accepted Answer

The answer of At the poles of Uranus, there are...

Question 2

In the atmospheres of the jovian planets, this component decreases, systematically, withdistance from the Sun.

Accepted Answer

A) hydrogen 
B) helium 
C) methane 
D) ammonia 
E) nitrogen 
A) hydrogen 
B) helium 
C) methane 
D) ammonia 
E) nitrogen

Question 3

Which of these is true about the seasons of Uranus?

Accepted Answer

A) With a tilt of 29 degrees, they are not that different from our solstices and equinoxes. 
B) Its strange tilt produces extreme seasonal variations, especially at the poles. 
C) At the Uranian equator, the Sun would pass overhead every sixteen hours. 
D) At the Uranian pole the Sun sets every 16 hours during the summer and winter. 
E) There are no seasons at the poles. 
A) With a tilt of 29 degrees, they are not that different from our solstices and equinoxes. 
B) Its strange tilt produces extreme seasonal variations, especially at the poles. 
C) At the Uranian equator, the Sun would pass overhead every sixteen hours. 
D) At the Uranian pole the Sun sets every 16 hours during the summer and winter. 
E) There are no seasons at the poles.

Question 4

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 5

William Herschel was the discoverer of Uranus.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

Due to its retrograde orbit, it will spi

Question 7

Small deviations in a planet's orbital motion:

Accepted Answer

A) show we don't fully understand gravitational forces yet. 
B) indicate the presence of an extensive atmosphere. 
C) indicate the presence of a powerful magnetic field. 
D) imply the nearby presence of a massive body. 
E) show the planet's orbit isn't stable. 
A) show we don't fully understand gravitational forces yet. 
B) indicate the presence of an extensive atmosphere. 
C) indicate the presence of a powerful magnetic field. 
D) imply the nearby presence of a massive body. 
E) show the planet's orbit isn't stable.

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

Neptune's large moon ________ is the only large satellite known in a retrograde orbit.

Accepted Answer

The answer of Neptune's large moon ________ is the only...

Question 10

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 11

The wind speeds on Uranus are most similar to wind speeds on:

Accepted Answer

A) Mercury. 
B) Earth. 
C) Jupiter. 
D) Saturn. 
E) Neptune. 
A) Mercury. 
B) Earth. 
C) Jupiter. 
D) Saturn. 
E) Neptune.

Question 12

Uranus and Neptune both rotate ________ than the Earth does.

Accepted Answer

The answer of Uranus and Neptune both rotate ________ than...

Question 13

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

Accepted Answer

Differential rotation means that differe

Question 14

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 15

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 16

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

Accepted Answer

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

Question 17

The planet whose pole was facing the Sun when Voyager 2 approached in 1986 was:

Accepted Answer

A) Jupiter. 
B) Saturn. 
C) Uranus. 
D) Neptune. 
E) Mars. 
A) Jupiter. 
B) Saturn. 
C) Uranus. 
D) Neptune. 
E) Mars.

Question 18

Compared with the other jovian planets, Neptune is:

Accepted Answer

A) much larger and featureless. 
B) small with features similar to Jupiter. 
C) small and featureless. 
D) much larger with features similar to Saturn. 
E) average, but featureless. 
A) much larger and featureless. 
B) small with features similar to Jupiter. 
C) small and featureless. 
D) much larger with features similar to Saturn. 
E) average, but featureless.

Question 19

How were the rings of Uranus discovered?

Accepted Answer

A) photometric observations of the occultation of a star made from Earth 
B) by Percival Lowell, who observed two "bumps" on either side of Uranus 
C) by William Herschel, while he also found the two largest moons 
D) by Voyager 2 when it passed by Uranus in 1986 
E) by the Hubble Space Telescope in the infrared 
A) photometric observations of the occultation of a star made from Earth 
B) by Percival Lowell, who observed two "bumps" on either side of Uranus 
C) by William Herschel, while he also found the two largest moons 
D) by Voyager 2 when it passed by Uranus in 1986 
E) by the Hubble Space Telescope in the infrared

Question 20

Explain why the two outermost gas giant planets, Uranus and Neptune, appear so differentfrom the innermost gas giant planets Saturn and Jupiter.

Accepted Answer

Uranus and Neptune appear significantly

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

At the poles of Uranus, there are ________ years of constant daylight, then the same length oftime of constant darkness.

In the atmospheres of the jovian planets, this component decreases, systematically, withdistance from the Sun.

Which of these is true about the seasons of Uranus?

Unlike the other jovian planets, Uranus:

William Herschel was the discoverer of Uranus.

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

Small deviations in a planet's orbital motion:

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

Neptune's large moon ________ is the only large satellite known in a retrograde orbit.

Neptune and Uranus have a bluish tint because:

The wind speeds on Uranus are most similar to wind speeds on:

Uranus and Neptune both rotate ________ than the Earth does.

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

About 50 years after Uranus was discovered:

What is erupting out of the geysers on Triton?

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

The planet whose pole was facing the Sun when Voyager 2 approached in 1986 was:

Compared with the other jovian planets, Neptune is:

How were the rings of Uranus discovered?

Explain why the two outermost gas giant planets, Uranus and Neptune, appear so differentfrom the innermost gas giant planets Saturn and Jupiter.

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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