Question 1

What evidence suggests that Enceladus has ongoing geological activity?

Accepted Answer

A)  Voyager 2 photographed liquid nitrogen geysers 10 kilometers tall. 
B)  Lack of impact craters on much of its surface, evidence of ice flows from possible volcanic activity, and geysers that supply material for the E-ring. 
C)  Voyager 1 showed sulfur eruptions all over its pizza-pie colored surface. 
D)  Enceladus is located within Saturn's Roche limit, and ready to blow up. 
E)  Enceladus undergoes severe tidal stresses from its resonance with Titan. 
A)  Voyager 2 photographed liquid nitrogen geysers 10 kilometers tall. 
B)  Lack of impact craters on much of its surface, evidence of ice flows from possible volcanic activity, and geysers that supply material for the E-ring. 
C)  Voyager 1 showed sulfur eruptions all over its pizza-pie colored surface. 
D)  Enceladus is located within Saturn's Roche limit, and ready to blow up. 
E)  Enceladus undergoes severe tidal stresses from its resonance with Titan. B

Question 2

The largest volcano on Io, Loki, is similar in size, but a bit larger than

Accepted Answer

A)  Texas. 
B)  India. 
C)  Mauna Kea. 
D)  Maryland. 
E)  Manhattan. 
A)  Texas. 
B)  India. 
C)  Mauna Kea. 
D)  Maryland. 
E)  Manhattan. D

Question 3

What is the origin of the jovian moons?

Accepted Answer

A)  They all formed with the planet. 
B)  They were main belt asteroids, captured by Jupiter's strong gravity. 
C)  They are Trojan asteroids, orbiting 60 degrees ahead or behind Jupiter. 
D)  The four Galilean moons formed with Jupiter, most others were later captures. 
E)  They were ripped from the planet's interior in an early cataclysmic event. 
A)  They all formed with the planet. 
B)  They were main belt asteroids, captured by Jupiter's strong gravity. 
C)  They are Trojan asteroids, orbiting 60 degrees ahead or behind Jupiter. 
D)  The four Galilean moons formed with Jupiter, most others were later captures. 
E)  They were ripped from the planet's interior in an early cataclysmic event. D

Question 4

What is the prediction for the future of Triton?

Accepted Answer

A)  It will provide the raw material for a future Neptunian ring. 
B)  It will develop active volcanoes as Neptune's tidal stresses become greater. 
C)  It will crash into Nereid when the smaller moon comes too close. 
D)  Its orbit, while retrograde, is very stable and will not change. 
E)  Its retrograde orbit will throw it back out into the Kuiper Belt again, with Pluto. 
A)  It will provide the raw material for a future Neptunian ring. 
B)  It will develop active volcanoes as Neptune's tidal stresses become greater. 
C)  It will crash into Nereid when the smaller moon comes too close. 
D)  Its orbit, while retrograde, is very stable and will not change. 
E)  Its retrograde orbit will throw it back out into the Kuiper Belt again, with Pluto.

Question 5

The asteroid belt is believed to be debris left over from the age of formation of the solar system; the tidal effects of ________ probably prevented formation of a major planet there.

Accepted Answer

The answer of The asteroid belt is believed to be...

Question 6

The lakes on Titan are almost pure methane.

Accepted Answer

A) True 
 B)False

Question 7

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 8

The "wispy terrain" on Rhea was revealed by the Cassini spacecraft to be

Accepted Answer

A)  ice cliffs created by tectonic fractures. 
B)  water ice flows from past impacts that cracked its icy surface. 
C)  the icy ash of water volcanoes. 
D)  "maria" created during the period of high impacts. 
E)  water ice flows from geyser-like activity. 
A)  ice cliffs created by tectonic fractures. 
B)  water ice flows from past impacts that cracked its icy surface. 
C)  the icy ash of water volcanoes. 
D)  "maria" created during the period of high impacts. 
E)  water ice flows from geyser-like activity.

Question 9

A moon that goes inside the Roche Limit will

Accepted Answer

A)  get heated by the strong magnetic fields. 
B)  collide with a major satellite. 
C)  escape its planet's gravity. 
D)  be torn apart by the planet's tidal forces. 
E)  become a planet. 
A)  get heated by the strong magnetic fields. 
B)  collide with a major satellite. 
C)  escape its planet's gravity. 
D)  be torn apart by the planet's tidal forces. 
E)  become a planet.

Question 10

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 11

Ganymede has many features that look like its history may be similar to the Earth's Moon's, but with water on Ganymede playing the role of rock on the Moon.

Accepted Answer

A) True 
 B)False

Question 12

What is interesting about Saturn's large moon Titan?

Accepted Answer

A)  It is one of Saturn's two large moons. 
B)  It has a 2:1 resonance with Mimas and a 4:1 resonance with the Cassini gap. 
C)  It has its own moon. 
D)  It orbits Saturn in a retrograde sense. 
E)  It has an atmosphere. 
A)  It is one of Saturn's two large moons. 
B)  It has a 2:1 resonance with Mimas and a 4:1 resonance with the Cassini gap. 
C)  It has its own moon. 
D)  It orbits Saturn in a retrograde sense. 
E)  It has an atmosphere.

Question 13

Rocky debris larger than 100 meters in diameter seen to be orbiting the sun are called ________.

Accepted Answer

The answer of Rocky debris larger than 100 meters in...

Question 14

Which of the Galilean moons is the densest and most geologically active?

Accepted Answer

A)  Io 
B)  Europa 
C)  Ganymede 
D)  Callisto 
E)  Titan 
A)  Io 
B)  Europa 
C)  Ganymede 
D)  Callisto 
E)  Titan

Question 15

The moons of Uranus are darker than those of Saturn, due to ________.

Accepted Answer

The answer of The moons of Uranus are darker than...

Question 16

Discovered in the 1990s, the ________ is a vaster, darker version of the more famed asteroid belt between Mars and Jupiter.

Accepted Answer

The answer of Discovered in the 1990s, the ________ is...

Question 17

All known asteroids can be found in the asteroid belt.

Accepted Answer

A) True 
 B)False

Question 18

Pluto was discovered in

Accepted Answer

A)  ancient times. 
B)  1789. 
C)  1859. 
D)  1930. 
E)  1992. 
A)  ancient times. 
B)  1789. 
C)  1859. 
D)  1930. 
E)  1992.

Question 19

The rings of Saturn occupy the region inside Saturn's Roche limit.

Accepted Answer

A) True 
 B)False

Question 20

All the Galilean moons are in synchronous rotation, with the same face always pointed toward Jupiter, except for tidally stressed Io.

Accepted Answer

A) True 
 B)False

What evidence suggests that Enceladus has ongoing geological activity?

The largest volcano on Io, Loki, is similar in size, but a bit larger than

What is the origin of the jovian moons?

What is the prediction for the future of Triton?

The asteroid belt is believed to be debris left over from the age of formation of the solar system; the tidal effects of ________ probably prevented formation of a major planet there.

The lakes on Titan are almost pure methane.

The rings of Uranus and Neptune are found

The "wispy terrain" on Rhea was revealed by the Cassini spacecraft to be

A moon that goes inside the Roche Limit will

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

Ganymede has many features that look like its history may be similar to the Earth's Moon's, but with water on Ganymede playing the role of rock on the Moon.

What is interesting about Saturn's large moon Titan?

Rocky debris larger than 100 meters in diameter seen to be orbiting the sun are called ________.

Which of the Galilean moons is the densest and most geologically active?

The moons of Uranus are darker than those of Saturn, due to ________.

Discovered in the 1990s, the ________ is a vaster, darker version of the more famed asteroid belt between Mars and Jupiter.

All known asteroids can be found in the asteroid belt.

Pluto was discovered in

The rings of Saturn occupy the region inside Saturn's Roche limit.

All the Galilean moons are in synchronous rotation, with the same face always pointed toward Jupiter, except for tidally stressed Io.

The Night Sky

Light and Telescopes

The Solar System

Earth and Its Moon

The Eight Planets

Formation of Planetary Systems

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Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

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Exam 6: Small Bodies in the Solar System

What evidence suggests that Enceladus has ongoing geological activity?

The largest volcano on Io, Loki, is similar in size, but a bit larger than

What is the origin of the jovian moons?

What is the prediction for the future of Triton?

The asteroid belt is believed to be debris left over from the age of formation of the solar system; the tidal effects of ________ probably prevented formation of a major planet there.

The lakes on Titan are almost pure methane.

The rings of Uranus and Neptune are found

The "wispy terrain" on Rhea was revealed by the Cassini spacecraft to be

A moon that goes inside the Roche Limit will

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

Ganymede has many features that look like its history may be similar to the Earth's Moon's, but with water on Ganymede playing the role of rock on the Moon.

What is interesting about Saturn's large moon Titan?

Rocky debris larger than 100 meters in diameter seen to be orbiting the sun are called ________.

Which of the Galilean moons is the densest and most geologically active?

The moons of Uranus are darker than those of Saturn, due to ________.

Discovered in the 1990s, the ________ is a vaster, darker version of the more famed asteroid belt between Mars and Jupiter.

All known asteroids can be found in the asteroid belt.

Pluto was discovered in

The rings of Saturn occupy the region inside Saturn's Roche limit.

All the Galilean moons are in synchronous rotation, with the same face always pointed toward Jupiter, except for tidally stressed Io.

The Night Sky

Light and Telescopes

The Solar System

Earth and Its Moon

The Eight Planets

Formation of Planetary Systems

The Sun

Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

The Milky Way Galaxy

Galaxies

Cosmology and the Universe

Filters