Question 1

Which of the following is the BRIGHTEST part of a comet?

Accepted Answer

A)  its nucleus 
B)  its coma 
C)  its ion tail 
D)  its dust tail 
A)  its nucleus 
B)  its coma 
C)  its ion tail 
D)  its dust tail

Question 2

Which of the following can be used as an indicator of the age of a moon's surface?

Accepted Answer

A)  surface brightness 
B)  crater density 
C)  volcanic activity 
D)  all of the above 
A)  surface brightness 
B)  crater density 
C)  volcanic activity 
D)  all of the above

Question 3

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 4

Most asteroids are closest in shape to:

Accepted Answer

A)  a potato. 
B)  an orange. 
C)  a stick. 
D)  a baseball. 
A)  a potato. 
B)  an orange. 
C)  a stick. 
D)  a baseball.

Question 5

The most common type of meteorite is:

Accepted Answer

A)  stony meteorite. 
B)  iron meteorite. 
C)  stony-iron meteorite. 
D)  carbonaceous chondrite meteorite. 
A)  stony meteorite. 
B)  iron meteorite. 
C)  stony-iron meteorite. 
D)  carbonaceous chondrite meteorite.

Question 6

The minimum size of a meteoroid that is capable of surviving its passage through Earth's atmosphere and hitting the ground is about as big as:

Accepted Answer

A)  a car. 
B)  a house. 
C)  a grain of sand. 
D)  your fist. 
A)  a car. 
B)  a house. 
C)  a grain of sand. 
D)  your fist.

Question 7

Which of the following moons is thought to have a vast ocean of water beneath its thin frozen surface?

Accepted Answer

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

Question 8

Which of the following is NOT geologically active?

Accepted Answer

A)  Callisto 
B)  Triton 
C)  Enceladus 
D)  Io 
A)  Callisto 
B)  Triton 
C)  Enceladus 
D)  Io

Question 9

Ganymede is one of the largest moons in the Solar System.It shows some terrain that is ancient and heavily cratered,younger terrain with less craters,but no terrain that is free of craters.Why would Ganymede's geological activity stop?

Accepted Answer

Ganymede's geological activity

Question 10

What does the existence of M-type asteroids tell us about their origin?

Accepted Answer

They were once the m

Question 11

What is the most common geological feature seen on moons?

Accepted Answer

A)  craters 
B)  volcanoes 
C)  palimpsests 
D)  geysers 
A)  craters 
B)  volcanoes 
C)  palimpsests 
D)  geysers

Question 12

The varied colors found on Io's surface are due to the presence of various molecules containing:

Accepted Answer

A)  sulfur. 
B)  silicon. 
C)  mercury. 
D)  magnesium. 
A)  sulfur. 
B)  silicon. 
C)  mercury. 
D)  magnesium.

Question 13

What might cause a moon to be geologically active while its planet is not?

Accepted Answer

A)  The moon may contain more magnetic material than the planet. 
B)  The moon's rotation is tidally locked to the planet. 
C)  Heating of the moon by its planet's heat of formation. 
D)  The moon orbital distance from the planet and/or other moons may cause tidal stresses that can heat its interior. 
A)  The moon may contain more magnetic material than the planet. 
B)  The moon's rotation is tidally locked to the planet. 
C)  Heating of the moon by its planet's heat of formation. 
D)  The moon orbital distance from the planet and/or other moons may cause tidal stresses that can heat its interior.

Question 14

How can moons be more geologically active than planets?

Accepted Answer

A)  Some moons have magnetic fields that are stronger than planets. 
B)  Some moons have a faster rotation rate than some planets. 
C)  The tidal stresses experienced by some moons can heat the interior. 
D)  Moons that are denser than the planets they orbit attract more colliding objects. 
A)  Some moons have magnetic fields that are stronger than planets. 
B)  Some moons have a faster rotation rate than some planets. 
C)  The tidal stresses experienced by some moons can heat the interior. 
D)  Moons that are denser than the planets they orbit attract more colliding objects.

Question 15

Why has planet formation essentially stopped in the solar system?

Accepted Answer

Much of the lighter material in the prot

Question 16

The chronological description of an asteroidal fragment that falls to Earth would be:

Accepted Answer

A)  meteor, meteorite, meteoroid. 
B)  meteorite, meteoroid, meteor. 
C)  meteoroid, meteor, meteorite. 
D)  meteor, meteoroid, meteorite. 
A)  meteor, meteorite, meteoroid. 
B)  meteorite, meteoroid, meteor. 
C)  meteoroid, meteor, meteorite. 
D)  meteor, meteoroid, meteorite.

Question 17

The nucleus of the typical comet is approximately ________ in size.

Accepted Answer

A)  10 km 
B)  1,000 km 
C)  10 meters 
D)  1 cm 
A)  10 km 
B)  1,000 km 
C)  10 meters 
D)  1 cm

Question 18

The mass of all the known asteroids combined would be as much as:

Accepted Answer

A)  half the mass of Earth. 
B)  three times the mass of Earth. 
C)  the mass of Mars. 
D)  one-third the mass of the Moon. 
A)  half the mass of Earth. 
B)  three times the mass of Earth. 
C)  the mass of Mars. 
D)  one-third the mass of the Moon.

Question 19

Examine the image below.Why does a comet usually have two tails,one that is straight and one that is curved? What materials compose each tail,and why do they have different shapes?

Accepted Answer

The straight tail is made of ionized gas

Question 20

Comet nuclei,absent their tails,are very dark because:

Accepted Answer

A)  they are made of water ice. 
B)  they have iron and nickel mixed with ice. 
C)  they have organic molecules mixed with ice. 
D)  they are covered in rock. 
A)  they are made of water ice. 
B)  they have iron and nickel mixed with ice. 
C)  they have organic molecules mixed with ice. 
D)  they are covered in rock.

Which of the following is the BRIGHTEST part of a comet?

Which of the following can be used as an indicator of the age of a moon's surface?

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

Most asteroids are closest in shape to:

The most common type of meteorite is:

The minimum size of a meteoroid that is capable of surviving its passage through Earth's atmosphere and hitting the ground is about as big as:

Which of the following moons is thought to have a vast ocean of water beneath its thin frozen surface?

Which of the following is NOT geologically active?

Ganymede is one of the largest moons in the Solar System.It shows some terrain that is ancient and heavily cratered,younger terrain with less craters,but no terrain that is free of craters.Why would Ganymede's geological activity stop?

What does the existence of M-type asteroids tell us about their origin?

What is the most common geological feature seen on moons?

The varied colors found on Io's surface are due to the presence of various molecules containing:

What might cause a moon to be geologically active while its planet is not?

How can moons be more geologically active than planets?

Why has planet formation essentially stopped in the solar system?

The chronological description of an asteroidal fragment that falls to Earth would be:

The nucleus of the typical comet is approximately ________ in size.

The mass of all the known asteroids combined would be as much as:

Examine the image below.Why does a comet usually have two tails,one that is straight and one that is curved? What materials compose each tail,and why do they have different shapes?

Comet nuclei,absent their tails,are very dark because:

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

Laws of Motion

Light and Telescopes

The Formation of Stars and Planets

Terrestrial Worlds in the Inner Solar System

Atmospheres of Venus, earth, and Mars

The Giant Planets

Measuring the Stars

Our Star: the Sun

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Measuring Galaxies

Our Galaxy: the Milky Way

The Evolution of the Universe

Formation of Structure

Life in the Universe

Filters

Exam 9: Small Bodies of the Solar System

Which of the following is the BRIGHTEST part of a comet?

Which of the following can be used as an indicator of the age of a moon's surface?

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

Most asteroids are closest in shape to:

The most common type of meteorite is:

The minimum size of a meteoroid that is capable of surviving its passage through Earth's atmosphere and hitting the ground is about as big as:

Which of the following moons is thought to have a vast ocean of water beneath its thin frozen surface?

Which of the following is NOT geologically active?

Ganymede is one of the largest moons in the Solar System.It shows some terrain that is ancient and heavily cratered,younger terrain with less craters,but no terrain that is free of craters.Why would Ganymede's geological activity stop?

What does the existence of M-type asteroids tell us about their origin?

What is the most common geological feature seen on moons?

The varied colors found on Io's surface are due to the presence of various molecules containing:

What might cause a moon to be geologically active while its planet is not?

How can moons be more geologically active than planets?

Why has planet formation essentially stopped in the solar system?

The chronological description of an asteroidal fragment that falls to Earth would be:

The nucleus of the typical comet is approximately ________ in size.

The mass of all the known asteroids combined would be as much as:

Examine the image below.Why does a comet usually have two tails,one that is straight and one that is curved? What materials compose each tail,and why do they have different shapes?

Comet nuclei,absent their tails,are very dark because:

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

Laws of Motion

Light and Telescopes

The Formation of Stars and Planets

Terrestrial Worlds in the Inner Solar System

Atmospheres of Venus, earth, and Mars

The Giant Planets

Measuring the Stars

Our Star: the Sun

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Measuring Galaxies

Our Galaxy: the Milky Way

The Evolution of the Universe

Formation of Structure

Life in the Universe

Filters