Question 1

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 2

The axial tilts of Uranus and Neptune are similar.

Accepted Answer

A) True 
 B)False

Question 3

Uranus and Neptune appear bluish in color because:

Accepted Answer

A)  methane gas in their atmospheres absorbs red light well. 
B)  ammonia absorbs blue light well. 
C)  hydrogen and helium are both blue in large concentrations. 
D)  dust motes in their atmospheres scatter blue well, just as in our own blue sky. 
E)  from their distance, the Sun would appear hotter and bluer than from Earth. 
A)  methane gas in their atmospheres absorbs red light well. 
B)  ammonia absorbs blue light well. 
C)  hydrogen and helium are both blue in large concentrations. 
D)  dust motes in their atmospheres scatter blue well, just as in our own blue sky. 
E)  from their distance, the Sun would appear hotter and bluer than from Earth.

Question 4

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 5

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 6

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 7

The observed temperature difference between the northern and southern hemispheres of Uranus:

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 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.

The time between equinoxes on Uranus is about:

The axial tilts of Uranus and Neptune are similar.

Uranus and Neptune appear bluish in color because:

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

A day at the north pole of Uranus lasts:

Which of these is true about the seasons of Uranus?

The observed temperature difference between the northern and southern hemispheres of Uranus:

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

The time between equinoxes on Uranus is about:

The axial tilts of Uranus and Neptune are similar.

Uranus and Neptune appear bluish in color because:

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

A day at the north pole of Uranus lasts:

Which of these is true about the seasons of Uranus?

The observed temperature difference between the northern and southern hemispheres of Uranus:

The planet Uranus 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: 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?

Filters