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Quiz about Largest satellites of The Solar System part 2

Largest satellites of The Solar System, part 2 Quiz

This is the second half of my quiz on the Solar System's largest known moons.

A multiple-choice quiz by jonthomas. Estimated time: 4 mins.

Author
jonthomas

Time
4 mins

Type
Multiple Choice

Quiz #
358,734

Updated
Jul 23 22

# Qns
10

Difficulty
Average

Avg Score
7 / 10

Plays
300

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Triton was once thought to be a planet in its own right before it was captured by Neptune. How can we tell that it is a captured object? Hint

It exhibits retrograde rotation

The orbits of several other Neptunian moons are oddly eccentric

It has a differentiated core

All of these are accepted pieces of evidence

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Question 2 of 10

2. This moon, out of all the "traditional" ones discovered prior to the Voyager missions, is the smallest known satellite of a gas giant that is confirmed to be a spheroid. Hint

Rhea

Titania

Miranda

Triton

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Question 3 of 10

3. Which crater on Saturn's moon Rhea is nicknamed "The Splat" due to a prominent ray system? Hint

Heller

Awonawilona

Inktomi

Fatu

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Question 4 of 10

4. This moon, named after the king of fairies in one of Shakespeare's plays, is Uranus's second largest. Hint

Titania

Oberon

Tethys

Sao

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Question 5 of 10

5. This Saturnian moon is well known for its effects and interactions with the E Ring. Hint

Enceladus

Hyperion

Titan

Epimetheus

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Question 6 of 10

6. "Titanian" as a descriptor can refer to Saturn's moon Titan, but what other satellite may it refer to?

Answer: (One Word)

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Question 7 of 10

7. This moon is thought to be formed around its primary in a similar way to the proposed model of the formation of Earth's moon? Hint

Weywot

Triton

Charon

Hi'iaka

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Question 8 of 10

8. Kachina Chasma, the longest known canyon on Uranus's moon Ariel, has been mapped by Voyager 2 to be at least 620 kilometers long.

True

False

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Question 9 of 10

9. This moon has the lowest albedo of any planetary-mass satellite in its system discovered before the 21st century. Hint

Enceladus

Charon

Europa

Umbriel

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Question 10 of 10

10. This moon, orbiting a dwarf planet, is estimated to be approximately the same size as Saturn's moon Tethys. Hint

Kerberos

Dysnomia

Actaea

Amalthea

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Quiz Answer Key and Fun Facts

1. Triton was once thought to be a planet in its own right before it was captured by Neptune. How can we tell that it is a captured object?

Answer: All of these are accepted pieces of evidence

Retrograde rotation means that an object rotates in the opposite direction that it orbits. Venus also shows this, but it is thought that this was caused by an impact from another planet sized object. As for the differentiated core, the suspected tidal heating caused by Triton's initial capture would have liquefied much of the core, which then refroze into new layers. Lastly, Triton entering the system would cause gravitational perturbations, disturbing the orbits of the already established satellites.

2. This moon, out of all the "traditional" ones discovered prior to the Voyager missions, is the smallest known satellite of a gas giant that is confirmed to be a spheroid.

Answer: Miranda

Miranda is one of Uranus's inner moons. One object, Mimas, is smaller and confirmed to be rounded, but it is an ellipsoid rather than a spheroid.

3. Which crater on Saturn's moon Rhea is nicknamed "The Splat" due to a prominent ray system?

Answer: Inktomi

In addition to its unusual prominence, Inktomi is thought to be one of the youngest surface features on Saturn's inner moons. It's approximately 47 kilometers in diameter.

4. This moon, named after the king of fairies in one of Shakespeare's plays, is Uranus's second largest.

Answer: Oberon

Oberon was a character in Shakespeare's "A Midsummer Night's Dream". All Uranian moons are named after characters from the works of Shakespeare and Pope.

5. This Saturnian moon is well known for its effects and interactions with the E Ring.

Answer: Enceladus

Saturn's E Ring is the outermost and faintest known ring of the gas giant. Due to the gravitational perturbations caused by Enceladus, current models suggest that the ring should dissipate, so it is considered probable that ejecta from Enceladus itself is constantly replenishing the ring.

6. "Titanian" as a descriptor can refer to Saturn's moon Titan, but what other satellite may it refer to?

Answer: Titania

Titania is Uranus's largest moon, and was discovered in 1787. Following the trend of other Uranian satellites, it is named after a Shakespearian character, namely the wife of Oberon from "A Midsummer Night's Dream".

7. This moon is thought to be formed around its primary in a similar way to the proposed model of the formation of Earth's moon?

Answer: Charon

Current theories state that hundreds of thousands of years ago, a Kuiper Belt Object (possibly Quaoar) impacted with Pluto, and the resulting debris coalesced into Charon while Pluto eventually relaxed back into a spheroid. Charon is so massive compared to Pluto that it forms a binary system; that is, the two objects orbit a center of gravity between one another.

8. Kachina Chasma, the longest known canyon on Uranus's moon Ariel, has been mapped by Voyager 2 to be at least 620 kilometers long.

Answer: True

In actuality, Voyager 2 did not fully map the surface features of Ariel when it flew by in 1986, so only a portion of the satellite was imaged. It is uncertain, but the upper estimates place the possible full length of the canyon at 2200 kilometers.

9. This moon has the lowest albedo of any planetary-mass satellite in its system discovered before the 21st century.

Answer: Umbriel

Albedo is the percentage of sunlight an object reflects off its surface. Compared to all other known Uranian moons, Umbriel has the lowest. This is somewhat fitting, as the root of the character it is named for is "umbra", which is Latin for "shadow".

10. This moon, orbiting a dwarf planet, is estimated to be approximately the same size as Saturn's moon Tethys.

Answer: Dysnomia

Dysnomia is the only known satellite of Eris. It could be as large as 400 kilometers in diameter, and it is thought to be comprised of mostly water ice. These facts suggest a possible spherical shape, though not with certainty.

Source: Author jonthomas

This quiz was reviewed by FunTrivia editor WesleyCrusher before going online.
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