AST 109 Lesson 10 & 11 MARS & JUPITER

Which moon of Jupiter has the lowest density?

Callisto

Which of the following is a Galilean moon?

Callisto

Which of the following moons has a huge `bullseye' of frozen water ripples on its surface?

Callisto

Which moon has a thick water ocean beneath a layer of ice?

Europa

Jupiter is composed primarily of

Hydrogen

Io has a much warmer interior than the other moons of Jupiter. What is the best reason why?

It experiences tidal flexing from the gravity of Jupiter, Europa and Ganymede.

Why is Jupiters albedo so high?

It has very thick, light colored clouds

The "belts" and "zones" on Jupiter are

Like high and low pressure weather systems on Earth, but stretched out around the planet by rapid differential rotation, alternating bands of rising and falling gases, regions of different colors because of temperature differences, and visible, even in a small telescope, from the Earth

The moons of mars differ from the Earth's Moon most noticeably in that:

Mars moons are not spherical

What color is the sky on Mars?

Often pink, like no other place in the solar system

The only moon that rises in the west and sets in the east in its planets sky is

Phobos

Mars is generally considered to be the planet (other than Earth) on which a person would have the greatest chance of survival (even if not for long). Which is not a reason for this?

The Viking missions found life which would provide a source of food.

The real 'canals' seen on Mars were probably formed by which of the following mechanisms?

Water flow

Of the following processes, which is most important now in shaping the Martian surface?

Wind Erosion

Which of the following best explains why Mars has relatively few craters?

Wind erosion on Mars wore down most of the craters.

The component of the polar ice caps of Mars that changes with the seasons is primarily

carbon dioxide

The color changes in Mars' atmosphere are primarily due to changes in atmospheric:

dust

We think that Jupiter has a very strong magnetic field because deep within the planet there is

liquid metallic hydrogen carrying electrical currents

Considering the state of the materials in its interior, Jupiter is mostly

liquids

The time scale on Mars that is most similar to the same period on Earth is

the length of its day