Question 1

It is theoretically possible for Earth to someday have a temporary ring structure.

Accepted Answer

A) True 
 B)False

Question 2

Which moon gives rise to the particles that make up Saturn's E ring?

Accepted Answer

A)  Titan 
B)  Triton 
C)  Enceladus 
D)  Thethys 
A)  Titan 
B)  Triton 
C)  Enceladus 
D)  Thethys

Question 3

Ring material

Accepted Answer

A)  is made mostly of fine dust. 
B)  has always orbited the giant planets. 
C)  must constantly be renewed. 
D)  is made of only house-sized rocks. 
A)  is made mostly of fine dust. 
B)  has always orbited the giant planets. 
C)  must constantly be renewed. 
D)  is made of only house-sized rocks.

Question 4

Rings of giant planets are very thin compared to their diameters mainly because

Accepted Answer

A)  of collisions between ring particles. 
B)  moons that tidally disrupt have small diameters. 
C)  energy is conserved when a moon tidally disrupts. 
D)  the planets have large tidal forces. 
A)  of collisions between ring particles. 
B)  moons that tidally disrupt have small diameters. 
C)  energy is conserved when a moon tidally disrupts. 
D)  the planets have large tidal forces.

Question 5

If Titan's mass is   and its radius is   ,what is its escape velocity?

Accepted Answer

A)  150 km/s 
B)  2.7 km/s 
C)  0.6 m/s 
D)  35 m/s 
A)  150 km/s 
B)  2.7 km/s 
C)  0.6 m/s 
D)  35 m/s

Question 6

Why is Io,a moon that is smaller and farther from the Sun than our own Moon,still geologically active?

Accepted Answer

Tidal stresses from Jupiter co

Question 7

If you wanted to search for faint rings around a giant planet by sending a spacecraft on a flyby,it would be best to do so

Accepted Answer

A)  as the spacecraft approached the planet. 
B)  after the spacecraft passed the planet. 
C)  during the closest flyby. 
D)  while orbiting one of its moons. 
A)  as the spacecraft approached the planet. 
B)  after the spacecraft passed the planet. 
C)  during the closest flyby. 
D)  while orbiting one of its moons.

Question 8

What do astronomers believe causes the spokelike features associated with Saturn's B ring?

Accepted Answer

Meteoroid impacts with larger

Question 9

Europa is a very interesting moon that NASA is considering visiting with a spacecraft in order to search for signs of life.What is it about this moon that makes it so interesting,and what surface features give us clues about its interior?

Accepted Answer

Europa has an icy surface riddled with c

Question 10

What material has been seen erupting from the surface of the icy moon Enceladus,and why?

Accepted Answer

Geysers of water erupt from th

Question 11

Which object has turned itself inside out numerous times,leading to lighter elements escaping,sulfur compounds composing the crust,and heavier elements making up the core?

Accepted Answer

A)  Mercury 
B)  Titan 
C)  Pluto 
D)  Io 
A)  Mercury 
B)  Titan 
C)  Pluto 
D)  Io

Question 12

All of the following ring structures are known to be created by shepherd moons EXCEPT

Accepted Answer

A)  braided rings. 
B)  arc segments. 
C)  ring gaps. 
D)  knots and kinks. 
A)  braided rings. 
B)  arc segments. 
C)  ring gaps. 
D)  knots and kinks.

Question 13

What is the most common geologic feature seen on moons?

Accepted Answer

A)  Craters 
B)  Volcanoes 
C)  Palimpsests 
D)  Geysers 
A)  Craters 
B)  Volcanoes 
C)  Palimpsests 
D)  Geysers

Question 14

What leads astronomers to believe that many of the larger moons associated with the giant planets have compositions that are roughly half water?

Accepted Answer

A)  Spectroscopic analysis indicates the presence of large bodies of water. 
B)  They have average densities midway between water and rock. 
C)  Space probes have drilled into the surfaces of many of the moons and detected water. 
D)  Rocks and other features that form only in the presence of water have been observed. 
A)  Spectroscopic analysis indicates the presence of large bodies of water. 
B)  They have average densities midway between water and rock. 
C)  Space probes have drilled into the surfaces of many of the moons and detected water. 
D)  Rocks and other features that form only in the presence of water have been observed.

Question 15

The density of particles in a planet's rings can be measured using

Accepted Answer

A)  infrared light. 
B)  the Doppler shift. 
C)  background stars. 
D)  proper motions. 
A)  infrared light. 
B)  the Doppler shift. 
C)  background stars. 
D)  proper motions.

Question 16

There are over 170 known moons in the Solar System.

Accepted Answer

A) True 
 B)False

Question 17

How do Uranus's rings differ from the ring systems of the other giant planets?

Accepted Answer

A)  Uranus has only one ring made up of fine dust. 
B)  Uranus has the most spectacular ring system with many bright,wide rings. 
C)  Uranus has 13 rings that are narrow and widely spaced. 
D)  Uranus has rings that are clumped into several arclike segments. 
A)  Uranus has only one ring made up of fine dust. 
B)  Uranus has the most spectacular ring system with many bright,wide rings. 
C)  Uranus has 13 rings that are narrow and widely spaced. 
D)  Uranus has rings that are clumped into several arclike segments.

Question 18

Particles that make up the rings of Uranus and Neptune are composed of

Accepted Answer

A)  rocky material from tidally disrupted moons. 
B)  organic material that has darkened due to bombardment by cosmic rays. 
C)  icy material from tidally disrupted comets. 
D)  All of the above 
A)  rocky material from tidally disrupted moons. 
B)  organic material that has darkened due to bombardment by cosmic rays. 
C)  icy material from tidally disrupted comets. 
D)  All of the above

Question 19

Of the giant planets,only Saturn and Jupiter have ring systems.

Accepted Answer

A) True 
 B)False

Question 20

The only planet(s)without a moon is (are)

Accepted Answer

A)  Mercury alone. 
B)  Venus alone. 
C)  Mercury and Venus. 
D)  Mercury,Venus,and Mars. 
A)  Mercury alone. 
B)  Venus alone. 
C)  Mercury and Venus. 
D)  Mercury,Venus,and Mars.

Exam 11: Planetary Adornmentsmoons and Rings

It is theoretically possible for Earth to someday have a temporary ring structure.

Which moon gives rise to the particles that make up Saturn's E ring?

Ring material

Rings of giant planets are very thin compared to their diameters mainly because

If Titan's mass is and its radius is ,what is its escape velocity?

Why is Io,a moon that is smaller and farther from the Sun than our own Moon,still geologically active?

If you wanted to search for faint rings around a giant planet by sending a spacecraft on a flyby,it would be best to do so

What do astronomers believe causes the spokelike features associated with Saturn's B ring?

Europa is a very interesting moon that NASA is considering visiting with a spacecraft in order to search for signs of life.What is it about this moon that makes it so interesting,and what surface features give us clues about its interior?

What material has been seen erupting from the surface of the icy moon Enceladus,and why?

Which object has turned itself inside out numerous times,leading to lighter elements escaping,sulfur compounds composing the crust,and heavier elements making up the core?

All of the following ring structures are known to be created by shepherd moons EXCEPT

What is the most common geologic feature seen on moons?

What leads astronomers to believe that many of the larger moons associated with the giant planets have compositions that are roughly half water?

The density of particles in a planet's rings can be measured using

There are over 170 known moons in the Solar System.

How do Uranus's rings differ from the ring systems of the other giant planets?

Particles that make up the rings of Uranus and Neptune are composed of

Of the giant planets,only Saturn and Jupiter have ring systems.

The only planet(s)without a moon is (are)

Why Learn Astronomy

Patterns in the Skymotions of Earth

Gravity and Orbitsa Celestial Ballet

Light

The Tools of the Astronomer

The Birth and Evolution of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquidthe Giant Planets

Gravity Is More Than Keplers Laws

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

A Run-Of-The-Mill G-Type Starour Sun

Star Formation and the Interstellar Medium

Stars in the Slow Lanelow-Mass Stellar Evolution

Live Fast,die Younghigh-Mass Stellar Evolution

Our Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

The Origin of Structure

Life

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