Astronomy Quiz 11

1. Above Europa's ocean is a relatively thin layer of:

(conventional) rock

Ice

Dry ice

Linoleum

None of the above

2. Although Io has no ocean on its surface, tidal forces from Jupiter cause a:

1 m high tidal buldge

10 m high tidal buldge

100 m high tidal buldge

1000 m high tidal buldge

None of the above

3. The Galilean moons are (in increasing distance from Jupiter):

Titan, Triton, Europa, Ganymede

Io, Triton, Callisto, Europa

Titan, Callisto, Ganymede, Io

Io, Europa, Ganymede, Callisto

None of the above

4. Ganymede, the largest of Jupiter's moons, is also:

Bigger than either of Mars' moons

Bigger than Earth's moon

Bigger than Mercury

All of the above

None of the above

5. Voyager satellite images suggest that Europa has an ocean of:

Magma(molten rock)

Water

Liquid carbon dioxide

Liquid hydrocarbons (eg. methane)

None of the above

6. The "rocky" cratered surface of Callisto is believed to be mainly:

(conventional) rock

Ice

Dry ice

Linoleum

None of the above

7. Jupiter's Galilean moons are called a "minature solar system" because:

Their orbits are nearly circular and lie in a plane

Their revolution direction (about Jupiter) are all the same

The average densities decrease with increasing distance from Jupiter

All of the above

None of the above

8. Unlike our moon, on Ganymede:

Light colored areas are younger and dark colored areas are older

Light colored areas are older and dark colored areas are younger

Light and dark areas are equally cratered

None of the above

9. Evidence for "ongoing" volcanic activity on Io are:

Photos from Voyager I showing erupting volcanoes

Io's lack of craters is consistent with almost constant "resurfacing" by molten flows

Io's thin atmosphere of sulfur dioxide is consistent with recent volcanic emissions

All of the above

None of the above

10. If Io is "tidally locked" to Jupiter, how can gravitational energy be "pumped" into its surface?

Indeed; thus it must be natural radioactivity in Io's Core that "powers" the volcanic activity

Indeed; and it is the additional tidal interaction with Europa that "powers" Io's volcanic activity

None of the above

11. It is theorized that Europa's ocean remains liquid because of:

Remnant heat from the formation of the moon

Gravitational and magnetic forces from Jupiter

Meteorite impacts intensified by the proximity of Jupiter

All of the above

None of the above

12. Unlike our moon, "resurfacing" on Ganymede is thought to be outflows of:

Magma(molten rock)

Water

Liquid carbon dioxide

Liquid hydrocarbons (eg. liquid methane)

None of the above

13. Callisto's largest basin is named:

Caloris basin

Orientale basin

Argyre Planitia

Valhalla basin

None of the above

14. Unlike our moon, Ganymede's surface includes:

Active volcanoes

Evidence for possible tectonic motion seen in grooves and ridges

Vast areas with no craters

All of the above

None of the above

15. Europa is like Io in:

Showing clear "ongoing" volcanic activity

Showing almost no cratering consistent with recent "resurfacing"

Having a vast network of lines crisscrossing bright, fields of water ice

All of the above

None of the above

16. The surface of Ganymede resembles our moon's suface in:

Always showing "one face" to Jupiter

Having many impact craters

Patterns of light and dark areas similar to maria and highlands on the moon

All of the above

None of the above

17. Callisto appears similar to Ganymede but with:

More craters and fewer fault(grooves and ridges) lines

Fewer craters and more fault(grooves and ridges) lines

Several large "basins"

Both a) and c)

Both b) and c)

18. Following the variations from Terrestrial to Jovian planets:

Io and Europa are believed to have rocky mantles and iron cores

Callisto is thought to have a large, outer icy mantle with a smaller inner rocky mantle and an iron core

Ganymede is thought to be mainly rock/ice mixture with little or no core

All of the above

None of the above

19. Io's largest volcano, Smoki, is:

Larger than the state of Maryland

Emits more energy than all of Earth's volcanoes combined

Occasionally has lava temperatures far in excess of any of Earth's volcanoes

All of the above

None of the above

Correct name is Loki, then d) is true.

Explanation

Correct name is Loki, then d) is true.

Astronomy Quiz 11

1. Above Europa's ocean is a relatively thin layer of:

2.

What first name or nickname would you like us to use?

2. Although Io has no ocean on its surface, tidal forces from Jupiter cause a:

3. The Galilean moons are (in increasing distance from Jupiter):

4. Ganymede, the largest of Jupiter's moons, is also:

5. Voyager satellite images suggest that Europa has an ocean of:

6. The "rocky" cratered surface of Callisto is believed to be mainly:

7. Jupiter's Galilean moons are called a "minature solar system" because:

8. Unlike our moon, on Ganymede:

9. Evidence for "ongoing" volcanic activity on Io are:

10. If Io is "tidally locked" to Jupiter, how can gravitational energy be "pumped" into its surface?

11. It is theorized that Europa's ocean remains liquid because of:

12. Unlike our moon, "resurfacing" on Ganymede is thought to be outflows of:

13. Callisto's largest basin is named:

14. Unlike our moon, Ganymede's surface includes:

15. Europa is like Io in:

16. The surface of Ganymede resembles our moon's suface in:

17. Callisto appears similar to Ganymede but with:

18. Following the variations from Terrestrial to Jovian planets:

19. Io's largest volcano, Smoki, is: