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27 Cards in this Set

  • Front
  • Back

In general, the less cratered a moon's surface, the _________ it is

Younger

The mare on Ganymede were formed by

Water erupting and spreading over the surface

Which of the galilean moons is densest and most geologically active?

Io

Inside the Roche limit,

large moons will be torn apart

Which of these moons has the densest atmosphere

Titan

The cassini division is a gap in daturns rings caused by

gravitational interaction with mimas

like our moon and most others, all four large jovian satellites have one side constantly fixed towards jupiter as they revolve and rotate?

false

due to tidal stresses, it is likely most of Io is molten, with a relatively thin solid crust

True

the moon _______ may have erupted to create the E-rings around saturn

Enceladus

For a moon the same density as its planet, the roche limit lies at ___)__ times the radius of its planet

2.4

the f-ring around saturn is maintained by:

2 shepherd moons

Like jupiter's other icy moons, europa is covered with craters

False

The retrograde orbit of triton dooms it to spiral inward toward neptune, perhaps someday to make a ring system

True

Which jovian moon shows the most diverse terrain, suggesting a violent impact broke it into many pieces, some of which reformed it as a jumbled puzzle?

Miranda

Which moon of saturn shows the largest impact crater, relative to its size?

Mimas

Compared to the size of mercury, ganymede is _________

larger

Saturn's rings are extremely old, possibly older than 4 billion years

False

The huygens probe of the ESA made a successful landing on

Titan

all 4 ring systems lie within their planets

roche limit

Titan's surface has been mapped using Earth based visual telescopes

False

The tital stresses that create Io's volcanism come from Jupiter and _________

Europa

Pluto was discovered in

1930

The only Jovian moon to orbit its planet retrograde and out of equatorial plane is

Triton

At titan, the lakes are made mostly of liquid _________

Ethane

As we go outward from Io to Ganymede, the density of the moons ____________

Decrease

Pluto is no longer classified as a planet

True

Which are the 4 galilean moons of jupiter?

Io, europa, ganymede, calisto