The composition of Saturn’s ring particles is predominantly water ice. |
True |
Saturn’s rings exist because they lie within the planet’s Roche limit. |
True |
Two small shepherd satellites are responsible for the unusually complex form of Saturn’s F ring |
True |
Titan’s surface is obscured by thick clouds of ammonia ice |
False |
Triton’s orbit is unusual because it is retrograde |
True |
The atmospheric pressure at the surface of Titan is |
about one-and-a-half times greater than the atmospheric pressure at Earth’s surface |
Which of the Galilean moons is the densest and most geologically active? |
lo |
Pluto’s density is most similar to |
moons of the jovian planets. |
Pluto was discovered in |
1930 |
The two names most associated with the discovery of Pluto are |
Lowell and Tombaugh |
Charon’s orbit |
is highly inclined to Pluto’s orbital plane. |
Pluto is most similar to |
Triton |
What is so unusual about Pluto’s orbit? |
It is more inclined to the ecliptic than any of the eight planets. |
Triton and Pluto both probably originated in the Kuiper Belt |
True |
Pluto is smaller than many moons in the solar system. |
True |
Pluto’s classification as a planet has been called into question |
True |
Pluto is visible to the naked eye on extremely dark nights |
False |
is probably one of the largest of the Kuiper Belt bodies beyond Neptune |
True |
What is thought to be the cause of Io’s volcanoes? |
…gravitational tidal stresses from both Jupiter and Europa |
Which are the four Galilean moons of Jupiter? |
Io, Europa, Ganymede, and Callisto |
In size and density, both Io and Europa resemble |
Our Moon |
The mare on Ganymede were formed by |
water erupting and spreading over the surface. |
Of the Jovian satellites, which shows the oldest, most cratered surface? |
Callisto |
The largest moon in the solar system, bigger but not as massive as Mercury, is |
Ganymede. |
Which of these moons has the densest atmosphere? |
Titan |
At Titan, the oceans are made of liquid |
ethane. |
The atmosphere of Titan is composed mostly of |
nitrogen. |
What is true of Titan’s atmosphere? |
It is similar to Earth’s in composition and density. |
The erupting geysers of nitrogen gas on Triton |
are caused by a not yet determined internal energy source. |
Which statement about Jupiter’s rings is true? |
They lie inside Jupiter’s Roche Limit. |
Inside the Roche Limit |
large moons are torn apart. |
The surface of Io looks most like the pack ice of the Arctic Ocean of Earth. |
False |
Io’s internal heat is due to tidal interactions with Jupiter and Europa |
True |
Of all the Galilean satellites, the surface of Europa is the youngest in age. |
False |
Ganymede is the largest satellite in the solar system. |
True |
Titan’s surface has been mapped using Earth based visual telescopes |
False |
Methane drives the weather of Titan, for there it can be liquid, solid, or gas |
True |
Like Titan, Triton has a nitrogen atmosphere |
True |
Alone among all the large moons, Triton orbits Neptune retrograde, and also at a 20 degree inclination to Neptune’s equator |
True |
Probably the next satellite to get turned into ring debris will be Neptune’s backward moon, Triton |
True |
Saturn’s rings are composed of __________. |
lots of individual particles of ice and rock |
Saturn’s rings look bright because __________. |
light from the Sun reflects off the material in the rings |
Which of the following statements correctly describes the motion of the particles in Saturn’s rings? |
Particles in the inner rings orbit Saturn at a faster speed than particles in the outer rings. |
The largest moon in the solar system is |
Ganymede |
The jovian moon with the most geologically active surface |
lo |
Strong evidence from both surface features and magnetic field data support the existence of a subsurface ocean on |
Europa |
What is responsible for the volcanic activity on lo? |
Tidal Heating |
The most distant of Jupiter’s moons |
Callisto |
The fact that Europa orbits Jupiter twice for every one orbit of Ganymede is an example of |
orbital resonance |
Rings, Moons, & Pluto
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