Exam 11: Jovian Planet Systems

A) radioactive decay
B) internal friction due to its high rotation rate
C) chemical processes
D) by raining dense helium droplets from higher to lower altitudes,resembling the process of differentiation
E) nuclear fusion in the core

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The white zones of Jupiter's atmosphere are white because of ammonia clouds.The red and brown colors of the belts must be produced by ingredients such as sulfur compounds or phosphorus compounds that "pollute" the ammonium-hydrosulfide crystals.Saturn's reds and tans probably come from the same compounds that produce these colors on Jupiter.However,they are more muted because these cloud layers lie deeper within Saturn's atmosphere,under a thicker layer of tan "smog." The blue colors of Uranus and Neptune are produced by methane gas,which absorbs red light and transmits blue.

A) Callisto
B) Titan
C) Triton
D) Io

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C

A) They are much more massive than the terrestrial planets.
B) Their large systems of moons and rings gravitationally attract the mass around the equator more.
C) Their rapid rotation flings the mass near the equator outward.
D) Their internal heat sources exert a pressure against the sides of the planets.
E) all of the above

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A) Titan
B) Ganymede
C) Io
D) Europa
E) Mimas

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A) very surprising and a great mystery.
B) a natural consequence of the fact that the entire solar nebula rotated in the same direction.
C) explained by the law of conservation of angular momentum.
D) a natural consequence of tidal forces acting on the moons.
E) a result of the fact that the moons once had atmospheres.

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Jupiter has the strongest magnetic field...

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A) a few million kilometers
B) a few tens of thousands of kilometers
C) a few hundred kilometers
D) a few kilometers
E) a few tens of meters

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A) Some of the moons are big enough that we'd call them planets (or dwarf planets) if they orbited the Sun.
B) One of the moons has a thick atmosphere.
C) Many of the moons are made largely of ices.
D) Most of the moons are large enough to be spherical in shape,but a few have the more potato-like shapes of asteroids.

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Triton's orbit around Neptune is retrogr...

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A) Different layers represent clouds made of gases that condense at different temperatures.
B) Different layers represent the various regions where the temperature is cool enough for liquid water to condense.
C) Different gases are present at different altitudes in Jupiter's atmosphere.
D) Winds prevent clouds from forming at some altitudes,so we see clouds only at the other altitudes.
E) Clouds form randomly,so on average there are always several layers.

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You are in the Great Red Spot on Jupiter...

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A) accretion
B) radioactive decay
C) differentiation
D) tidal heating
E) bombardment

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A) It has a different composition than Saturn,including a higher proportion of hydrogen compounds and rocks.
B) It has a greater proportion of hydrogen than Saturn.
C) The extra mass of Neptune compresses its interior to a greater extent than that of Saturn.
D) Its hydrogen is molecular,whereas Saturn's hydrogen is atomic.
E) It is not denser than Saturn.

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True

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