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Multiple Choice Quiz
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What element is Jupiter primarily made of?

The equatorial diameter of Jupiter is about 6% larger than the polar diameter of Jupiter. Why?
A)Jupiter rotates rapidly
B)Jupiter is distorted by tides due to its satellites
C)beneath the clouds, Jupiter has many equatorial mountain ranges
D)solar tides have distorted Jupiter

How do we know that the dark colored regions in the atmosphere of Jupiter are generally hotter than the light colored regions?
A)they reflect less light than the light regions
B)they rotate counterclockwise in the northern hemisphere
C)they emit more infrared radiation than the light regions
D)they are observed to lie higher in the atmosphere

If there is any rocky material in Jupiter and Saturn, where is it likely to be located?
A)in the cores of the planets
B)mixed in with atmospheric gases
C)in solid continents floating in liquid metallic hydrogen
D)in atmospheric dust clouds

The amount of infrared energy emitted by Jupiter is about twice as great as the amount of sunlight which the planet absorbs. What is the significance of this discrepancy?
A)it implies that the planet is cooler than it should be
B)it implies that there are significant energy sources within Jupiter
C)it implies that the sun was once much brighter than it now is
D)it implies that the planet must have a rocky core

Which of the following best describes the evolution of Jupiter since soon after it formed?
A)it has grown steadily dimmer and hotter
B)it has grown steadily brighter and hotter
C)it has grown steadily dimmer and cooler
D)it has grown steadily brighter and cooler

The part of Jupiter that we see in visible light is
A)a. the magnetosphere
B)atmospheric clouds
C)a thick liquid layer
D)Interaction of the satellite Io with the Jovian magnetosphere

How does Saturn compare to Jupiter?
A)it is less massive and has less colorful clouds
B)it is more massive and has less colorful clouds
C)it is less massive and has more colorful clouds
D)it is more massive and has more colorful clouds

How do we know that the rings of Saturn are made of independently orbiting particles rather than solid sheets of material?
A)the inner and outer edges of the rings have different orbital periods
B)meteoroids have been observed to pass through the rings
C)large individual particles can be seen in the Voyager images
D)solid sheets would reflect 100\% of the sunlight which strikes the rings

What is the Roche limit?
A)the distance from a planet at which tides would destroy a satellite
B)the minimum pressure at which metallic hydrogen can be produced
C)the maximum temperature which can exist in Saturn's atmosphere
D)the outer diameter of the Oort cloud

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