Question 1

The four Galilean moons of Jupiter are found within Jupiter's _______________.

Accepted Answer

magnetosphere

Question 2

Most small moons tend to be old and geologically inactive. Explain why Enceladus appears to break that general rule.

Accepted Answer

The smaller moons of Saturn are icy worlds battered by impact craters, and you can suspect that they are cold and old. Small worlds lose their heat quickly, and with no internal heat, there is no geological activity to erase impact craters. A small, icy world covered with craters is exactly what you would expect in the outer solar system. Enceladus, however, is peculiar. Although it is small and icy, its surface is highly reflective, and some areas contain fewer craters than you would expect. In fact, some regions seem almost free of craters. Grooves and faults mark some regions of the little moon and suggest motion in the crust. These features should have been destroyed long ago by impact cratering, so you must suppose that the moon has been geologically active at some time since the end of the heavy bombardment at the conclusion of planet building. The water vents discovered at the south pole of Enceladus show the moon is still active.

Question 3

What does a high albedo indicate with regard to a planetary object?

Accepted Answer

A)  The surface is cratered and old. 
B)  The planetary object is still developing. 
C)  The planet is highly active. 
D)  The surface is highly reflective and therefore young. 
E)  The planetary object has a strong magnetic field. 
A)  The surface is cratered and old. 
B)  The planetary object is still developing. 
C)  The planet is highly active. 
D)  The surface is highly reflective and therefore young. 
E)  The planetary object has a strong magnetic field. D

Question 4

Which statement best describes the surface of Ganymede?

Accepted Answer

A)  dark and dirty ice, heavily pocked with craters 
B)  old and dark on some portion, but cratered with a young bright grooved terrain 
C)  icy crust free of craters with a liquid water ocean beneath 
D)  covered in active sulfur-based volcanoes 
E)  mostly water ice mixed with methane 
A)  dark and dirty ice, heavily pocked with craters 
B)  old and dark on some portion, but cratered with a young bright grooved terrain 
C)  icy crust free of craters with a liquid water ocean beneath 
D)  covered in active sulfur-based volcanoes 
E)  mostly water ice mixed with methane

Question 5

What evidence is there to prove Jupiter has a liquid interior?

Accepted Answer

A)  Jupiter is oblate 
B)  Jupiter rotates rapidly 
C)  Jupiter is tilted on its axis 
D)  Jupiter has a thin, hot atmosphere 
E)  Jupiter has a very strong magnetic field 
A)  Jupiter is oblate 
B)  Jupiter rotates rapidly 
C)  Jupiter is tilted on its axis 
D)  Jupiter has a thin, hot atmosphere 
E)  Jupiter has a very strong magnetic field

Question 6

How can Jupiter have such a strong magnetic field?

Accepted Answer

Jupiter has a magnetic field about 14 ti

Question 7

Which space mission orbited Jupiter and dropped a probe into Jupiter's atmosphere?

Accepted Answer

A)  Pioneer 
B)  Voyager 
C)  Galileo 
D)  Cassini 
E)  New Horizons 
A)  Pioneer 
B)  Voyager 
C)  Galileo 
D)  Cassini 
E)  New Horizons

Question 8

The interior of Jupiter is mostly liquid helium.

Accepted Answer

A) True 
 B)False

Question 9

Jupiter has only four moons.

Accepted Answer

A) True 
 B)False

Question 10

Why is there no surface on Jupiter or Saturn?

Accepted Answer

Both planets are rich in hydrogen and he

Question 11

Which is a characteristic of Jovian planets when compared to Terrestrial planets?

Accepted Answer

A)  Jovian planets are much larger than Terrestrial planets 
B)  Jovian planets have rocky surfaces 
C)  Jovian planets have no differentiation like Terrestrial planets 
D)  Jovian planets have moons, unlike the Terrestrial planets 
E)  Jovian planets have warmer atmospheres than Terrestrial planets. 
A)  Jovian planets are much larger than Terrestrial planets 
B)  Jovian planets have rocky surfaces 
C)  Jovian planets have no differentiation like Terrestrial planets 
D)  Jovian planets have moons, unlike the Terrestrial planets 
E)  Jovian planets have warmer atmospheres than Terrestrial planets.

Question 12

Some of the gaps in Saturn's rings, such as the Cassini Division, are caused by ____ with moons.

Accepted Answer

A)  tides 
B)  ripples 
C)  rotations 
D)  resonances 
E)  forward scattering 
A)  tides 
B)  ripples 
C)  rotations 
D)  resonances 
E)  forward scattering

Question 13

Which statement is true when comparing Saturn to Jupiter?

Accepted Answer

A)  Saturn has rings and Jupiter does not. 
B)  Saturn has stronger winds than Jupiter. 
C)  Saturn is closer to the Sun than Jupiter. 
D)  Saturn is composed of more hydrogen and helium than Jupiter. 
E)  Saturn has a more distinct belt-zones than Jupiter. 
A)  Saturn has rings and Jupiter does not. 
B)  Saturn has stronger winds than Jupiter. 
C)  Saturn is closer to the Sun than Jupiter. 
D)  Saturn is composed of more hydrogen and helium than Jupiter. 
E)  Saturn has a more distinct belt-zones than Jupiter.

Question 14

Match between columns
                        Premises: It has a liquid water ocean just below its icy surface.
Unlike other satellites, it has a thick atmosphere.
It has more than 150 active volcanoes on its surface.
It is the largest planet in the Solar System.
Its satellites were discovered by Galileo.
It reflects 90 percent of the sunlight that hits it.
It is the largest moon in the Solar System.
Its average density is just 0.69 g/cm S1U1P1 3 S1S1P0 ,
Its rings were discovered by Galileo.
It never experienced planet differentiation.

Accepted Answer

The Answer of Ganymede and Callisto and Saturn and Io is...

Question 15

Which space mission orbited Saturn and dropped a probe into Saturn's atmosphere?

Accepted Answer

A)  Pioneer 
B)  Voyager 
C)  Galileo 
D)  Cassini-Huygens 
E)  New Horizons 
A)  Pioneer 
B)  Voyager 
C)  Galileo 
D)  Cassini-Huygens 
E)  New Horizons

Question 16

The Cassini spacecraft detected large clouds of water vapor escaping from vents through the icy crust of Saturn's moon Enceladus.

Accepted Answer

A) True 
 B)False

Question 17

Enceladus orbits Saturn in a resonance with the larger moon Dione. Each time Dione orbits Saturn once, Enceladus orbits _______________.

Accepted Answer

The answer of Enceladus orbits Saturn in a resonance with...

Question 18

Which statement best describes the surface of Io?

Accepted Answer

A)  dark and dirty ice, heavily pocked with craters 
B)  old and dark on some portion, but cratered with a young bright grooved terrain 
C)  icy crust free of craters with a liquid water ocean beneath 
D)  covered in active sulfur-based volcanoes 
E)  mostly water ice mixed with methane 
A)  dark and dirty ice, heavily pocked with craters 
B)  old and dark on some portion, but cratered with a young bright grooved terrain 
C)  icy crust free of craters with a liquid water ocean beneath 
D)  covered in active sulfur-based volcanoes 
E)  mostly water ice mixed with methane

Question 19

What action is responsible for the heating of Saturn's interior?

Accepted Answer

A)  rapid rotation on its axis 
B)  zero inclination to its axis of rotation 
C)  convection currents of liquid hydrogen 
D)  falling droplets of helium releasing energy 
E)  rising magma from hot spots found on its surface 
A)  rapid rotation on its axis 
B)  zero inclination to its axis of rotation 
C)  convection currents of liquid hydrogen 
D)  falling droplets of helium releasing energy 
E)  rising magma from hot spots found on its surface

Question 20

Which best describes the surface of Callisto?

Accepted Answer

A)  dark and dirty ice, heavily pocked with craters 
B)  old and dark on some portion, but cratered with a young bright grooved terrain 
C)  icy crust free of craters with a liquid water ocean beneath 
D)  covered in active sulfur-based volcanoes 
E)  mostly water ice mixed with methane 
A)  dark and dirty ice, heavily pocked with craters 
B)  old and dark on some portion, but cratered with a young bright grooved terrain 
C)  icy crust free of craters with a liquid water ocean beneath 
D)  covered in active sulfur-based volcanoes 
E)  mostly water ice mixed with methane

Exam 23: Jupiter and Saturn

The four Galilean moons of Jupiter are found within Jupiter's _______________.

Most small moons tend to be old and geologically inactive. Explain why Enceladus appears to break that general rule.

What does a high albedo indicate with regard to a planetary object?

Which statement best describes the surface of Ganymede?

What evidence is there to prove Jupiter has a liquid interior?

How can Jupiter have such a strong magnetic field?

Which space mission orbited Jupiter and dropped a probe into Jupiter's atmosphere?

The interior of Jupiter is mostly liquid helium.

Jupiter has only four moons.

Why is there no surface on Jupiter or Saturn?

Which is a characteristic of Jovian planets when compared to Terrestrial planets?

Some of the gaps in Saturn's rings, such as the Cassini Division, are caused by ____ with moons.

Which statement is true when comparing Saturn to Jupiter?

Which space mission orbited Saturn and dropped a probe into Saturn's atmosphere?

The Cassini spacecraft detected large clouds of water vapor escaping from vents through the icy crust of Saturn's moon Enceladus.

Enceladus orbits Saturn in a resonance with the larger moon Dione. Each time Dione orbits Saturn once, Enceladus orbits _______________.

Which statement best describes the surface of Io?

What action is responsible for the heating of Saturn's interior?

Which best describes the surface of Callisto?

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

Filters