Question 1

Compare and contrast the magnetospheres of Earth and Jupiter.Discuss strength and reaction to solar winds.

Accepted Answer

Jupiter's magnetosphere is the strongest...

Question 2

How does the density of Jupiter compare to the terrestrial planets?

Accepted Answer

A)   It is denser than all the terrestrial planets combined.
B)   It is denser than the Moon, but less dense than any of the others.
C)   Its density is slightly less than Mercury, but more than Mars.
D)   Its density is about the same as Mars.
E)   Its density is less than any terrestrial.F) A) and B)
G) A) and E)

Question 3

The particles making up the ring of Jupiter are composed of bright,reflective ice.

Accepted Answer

A) True 
 B)False

Question 4

What is the source of Jupiter's nonthermal radio radiation?

Accepted Answer

A)   charged particles moving in a magnetic field
B)   metallic hydrogen swirling in the planet's interior
C)   the gravitational attraction of Jupiter's moons
D)   the Great Red Spot
E)   thermonuclear fusion in Jupiter's coreF) A) and B)
G) A) and C)

Question 5

The zonal flows giving rise to the belts and zones are similar to the jet streams in our own stratosphere.

Accepted Answer

A) True 
 B)False

Question 6

What is true of Jupiter's magnetosphere?

Accepted Answer

A)   Although its surface field is greater, since the planet is larger the total field is actually weaker than Earth's.
B)   It does not trap protons and electrons, as Earth's Van Allen belts do.
C)   It has a tail that extends at least to Saturn's orbit.
D)   It is most extensive on the sunward side of the planet.
E)   It is only slightly stronger than Saturn's.F) A) and E)
G) A) and B)

Question 7

If Jupiter were about 80 times more massive than it is,nuclear fusion should have been possible,making it a small star.What might have been the most likely effect on the Earth?

Accepted Answer

A)   The gravitational pull might have prevented the Earth settling into a stable orbit, which would have prevented the development of life on Earth.
B)   Jupiter's moons would have been likely to develop life, which would have competed with life on Earth.
C)   The extra radiation from a second star in the solar system would have prevented life forming on Earth.
D)   Jupiter's magnetic field would have been much larger, disrupting Earth's magnetic field.
E)   Nothing because Jupiter is so much further from the Earth than the Sun is.F) A) and C)
G) D) and E)

Question 8

How was the rotation rate of Jupiter's core determined?

Accepted Answer

A)   by observing the Great Red Spot
B)   by watching Io move across the disk of Jupiter
C)   by radio observations of Jupiter's rapidly spinning magnetosphere
D)   by observing the fastest moving regions of Jupiter's equator
E)   by measuring the oblateness of Jupiter's diskF) B) and E)
G) B) and D)

Question 9

The clouds of Jupiter are primarily composed of liquid hydrogen.

Accepted Answer

A) True 
 B)False

Question 10

Together,which two gases make up 99% of Jupiter's atmosphere?

Accepted Answer

A)   Ammonia and Methane
B)   Water Vapor and Methane
C)   Helium and Ammonia
D)   Hydrogen and Ammonia
E)   Hydrogen and HeliumF) B) and E)
G) B) and C)

Question 11

How does the heat Jupiter radiates compare to the energy it receives from the Sun?

Accepted Answer

A)   They are equal, as you would expect for a highly reflective planet.
B)   Jupiter's dark belts absorb most of the solar radiation, so it is cooler in the infrared.
C)   Jupiter radiates back into space about twice the energy it gets from the Sun.
D)   Jupiter is a brown dwarf, about a hundred times less luminous than the Sun.
E)   Jupiter is a red dwarf, about a tenth the Sun's luminosity.F) A) and E)
G) All of the above

Question 12

Of the Galilean moons,the one with striking grooved terrain and icy tectonic features as well as older craters is:

Accepted Answer

A)   Amalthea.
B)   Io.
C)   Europa.
D)   Ganymede.
E)   Callisto.F) C) and D)
G) None of the above

Question 13

What is the source of Jupiter's excess energy?

Accepted Answer

A)   helium rain falling through its interior
B)   the decay of radioactive elements in its dense core
C)   nuclear fusion in its hot, sunlike core of hydrogen
D)   the slow escape of gravitational energy released during the planet's formation
E)   the tidal stresses of the large Galilean moonsF) B) and D)
G) A) and E)

Question 14

The average density of the planet Jupiter has been known for hundreds of years,but the densities of its Galilean moons were only determined accurately from data obtained during the Voyager by-pass missions.Why?

Accepted Answer

The density of an object is its mass div...

Question 15

How large is Jupiter's magnetosphere?

Accepted Answer

A)   It is about as large as the Earth's.
B)   It is so large it extends out to the orbit of Io.
C)   It is a million times the volume of the Earth's, extending beyond the orbit of Saturn.
D)   It extends inward to the orbit of Mars.
E)   It envelopes even the Sun and rest of the solar system.F) D) and E)
G) A) and E)

Question 16

Essentially,the Great Red Spot is:

Accepted Answer

A)   Neptune's largest atmospheric feature.
B)   a large cyclonic storm (hurricane) .
C)   always located within 10 degrees of Jupiter's north pole.
D)   composed primarily of iron oxide.
E)   traveling north and south across Jupiter's face.F) A) and E)
G) B) and E)

Question 17

Jupiter's dark ________ are regions of cooler material that is sinking into the interior.

Accepted Answer

The answer of Jupiter's dark ________ are regions of cooler...

Question 18

The only spacecraft to go into orbit around Jupiter was:

Accepted Answer

A)   Voyager 2.
B)   Pioneer 10.
C)   Cassini.
D)   Galileo.
E)   Viking I.F) D) and E)
G) A) and B)

Question 19

How does the magnetic tilt of Jupiter compare with our field?

Accepted Answer

A)   Both are exactly perpendicular to our equator, aligned with our rotation axis.
B)   Jupiter's lies perpendicular to the ecliptic, while ours is tilted 23.5 degrees.
C)   Both are tilted about 10 degrees, but Jupiter is opposite in polarity.
D)   Both are tilted about 27 degrees, much like Saturn's.
E)   Like Uranus, Jupiter is flopped over on its side.F) C) and D)
G) None of the above

Question 20

Which three Galilean moons were found by Galileo to have weak,changing magnetic fields?

Accepted Answer

A)   Titan, Callisto, and Amalthea
B)   Io, Europa, and Callisto
C)   Io, Amalthea, and Ganymede
D)   Io, Europa, and Ganymede
E)   Europa, Ganymede, and CallistoF) None of the above
G) B) and E)

Exam 11: Jupiter: Giant of the Solar System

The average density of the planet Jupiter has been known for hundreds of years,but the densities of its Galilean moons were only determined accurately from data obtained during the Voyager by-pass missions.Why?

Correct AnswerverifiedThe density of an object is its mass div...View AnswerShow Answer

Jupiter's dark ________ are regions of cooler material that is sinking into the interior.

Correct AnswerverifiedShow Answer

The zonal flows giving rise to the belts and zones are similar to the jet streams in our own stratosphere.

Correct AnswerverifiedShow Answer

What is true of Jupiter's magnetosphere?

Correct AnswerverifiedShow Answer

How does the magnetic tilt of Jupiter compare with our field?

Correct AnswerverifiedShow Answer

What is the source of Jupiter's excess energy?

Correct AnswerverifiedShow Answer

Essentially,the Great Red Spot is:

Correct AnswerverifiedShow Answer

How large is Jupiter's magnetosphere?

Correct AnswerverifiedShow Answer

The particles making up the ring of Jupiter are composed of bright,reflective ice.

Correct AnswerverifiedShow Answer

Which three Galilean moons were found by Galileo to have weak,changing magnetic fields?

Correct AnswerverifiedShow Answer

Compare and contrast the magnetospheres of Earth and Jupiter.Discuss strength and reaction to solar winds.

Correct AnswerverifiedJupiter's magnetosphere is the strongest...View AnswerShow Answer

How was the rotation rate of Jupiter's core determined?

Correct AnswerverifiedShow Answer

Together,which two gases make up 99% of Jupiter's atmosphere?

Correct AnswerverifiedShow Answer

Of the Galilean moons,the one with striking grooved terrain and icy tectonic features as well as older craters is:

Correct AnswerverifiedShow Answer

The only spacecraft to go into orbit around Jupiter was:

Correct AnswerverifiedShow Answer

What is the source of Jupiter's nonthermal radio radiation?

Correct AnswerverifiedShow Answer

How does the density of Jupiter compare to the terrestrial planets?

Correct AnswerverifiedShow Answer

How does the heat Jupiter radiates compare to the energy it receives from the Sun?

Correct AnswerverifiedShow Answer

If Jupiter were about 80 times more massive than it is,nuclear fusion should have been possible,making it a small star.What might have been the most likely effect on the Earth?

Correct AnswerverifiedShow Answer

The clouds of Jupiter are primarily composed of liquid hydrogen.

Correct AnswerverifiedShow Answer

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Jupiter's magnetosphere is the strongest...
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