Astronomy Quiz 11
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This quiz is designed to test knowledge on the basics of the planet Jupiter and its moons.
- 1.The Galilean moons are (in increasing distance from Jupiter):
- A.
Titan, Triton, Europa, Ganymede
- B.
Io, Triton, Callisto, Europa
- C.
Titan, Callisto, Ganymede, Io
- D.
Io, Europa, Ganymede, Callisto
- E.
None of the above
- 2.Jupiter's Galilean moons are called a "minature solar system" because:
- A.
Their orbits are nearly circular and lie in a plane
- B.
Their revolution direction (about Jupiter) are all the same
- C.
The average densities decrease with increasing distance from Jupiter
- D.
All of the above
- E.
None of the above
- 3.Following the variations from Terrestrial to Jovian planets:
- A.
Io and Europa are believed to have rocky mantles and iron cores
- B.
Callisto is thought to have a large, outer icy mantle with a smaller inner rocky mantle and an iron core
- C.
Ganymede is thought to be mainly rock/ice mixture with little or no core
- D.
All of the above
- E.
None of the above
- 4.Although Io has no ocean on its surface, tidal forces from Jupiter cause a:
- A.
1 m high tidal buldge
- B.
10 m high tidal buldge
- C.
100 m high tidal buldge
- D.
1000 m high tidal buldge
- E.
None of the above
- 5.If Io is "tidally locked" to Jupiter, how can gravitational energy be "pumped" into its surface?
- A.
Indeed; thus it must be natural radioactivity in Io's Core that "powers" the volcanic activity
- B.
Indeed; and it is the additional tidal interaction with Europa that "powers" Io's volcanic activity
- C.
Indeed; but Io's non-circular orbit means Io's tidal buldge "wobbles" back and forth as Io fails to point perfectly toward Jupiter at all points in its orbit
- D.
None of the above
- 6.Evidence for "ongoing" volcanic activity on Io are:
- A.
Photos from Voyager I showing erupting volcanoes
- B.
Io's lack of craters is consistent with almost constant "resurfacing" by molten flows
- C.
Io's thin atmosphere of sulfur dioxide is consistent with recent volcanic emissions
- D.
All of the above
- E.
None of the above
- 7.Io's largest volcano, Smoki, is:
- A.
Larger than the state of Maryland
- B.
Emits more energy than all of Earth's volcanoes combined
- C.
Occasionally has lava temperatures far in excess of any of Earth's volcanoes
- D.
All of the above
- E.
None of the above
- 8.Europa is like Io in:
- A.
Showing clear "ongoing" volcanic activity
- B.
Showing almost no cratering consistent with recent "resurfacing"
- C.
Having a vast network of lines crisscrossing bright, fields of water ice
- D.
All of the above
- E.
None of the above
- 9.Voyager satellite images suggest that Europa has an ocean of:
- A.
Magma(molten rock)
- B.
Water
- C.
Liquid carbon dioxide
- D.
Liquid hydrocarbons (eg. methane)
- E.
None of the above
- 10.Above Europa's ocean is a relatively thin layer of:
- A.
(conventional) rock
- B.
Ice
- C.
Dry ice
- D.
Linoleum
- E.
None of the above
- 11.It is theorized that Europa's ocean remains liquid because of:
- A.
Remnant heat from the formation of the moon
- B.
Gravitational and magnetic forces from Jupiter
- C.
Meteorite impacts intensified by the proximity of Jupiter
- D.
All of the above
- E.
None of the above
- 12.Ganymede, the largest of Jupiter's moons, is also:
- A.
Bigger than either of Mars' moons
- B.
Bigger than Earth's moon
- C.
Bigger than Mercury
- D.
All of the above
- E.
None of the above
- 13.The surface of Ganymede resembles our moon's suface in:
- A.
Always showing "one face" to Jupiter
- B.
Having many impact craters
- C.
Patterns of light and dark areas similar to maria and highlands on the moon
- D.
All of the above
- E.
None of the above
- 14.Unlike our moon, on Ganymede:
- A.
Light colored areas are younger and dark colored areas are older
- B.
Light colored areas are older and dark colored areas are younger
- C.
Light and dark areas are equally cratered
- D.
None of the above
- 15.Unlike our moon, "resurfacing" on Ganymede is thought to be outflows of:
- A.
Magma(molten rock)
- B.
Water
- C.
Liquid carbon dioxide
- D.
Liquid hydrocarbons (eg. liquid methane)
- E.
None of the above
- 16.Unlike our moon, Ganymede's surface includes:
- A.
Active volcanoes
- B.
Evidence for possible tectonic motion seen in grooves and ridges
- C.
Vast areas with no craters
- D.
All of the above
- E.
None of the above
- 17.Callisto appears similar to Ganymede but with:
- A.
More craters and fewer fault(grooves and ridges) lines
- B.
Fewer craters and more fault(grooves and ridges) lines
- C.
Several large "basins"
- D.
Both a) and c)
- E.
Both b) and c)
- 18.Callisto's largest basin is named:
- A.
Caloris basin
- B.
Orientale basin
- C.
Argyre Planitia
- D.
Valhalla basin
- E.
None of the above
- 19.The "rocky" cratered surface of Callisto is believed to be mainly:
- A.
(conventional) rock
- B.
Ice
- C.
Dry ice
- D.
Linoleum
- E.
None of the above
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