CH 8&9 Flashcards
T/F mercury has “wierd terrain” directly opposite it’s huge Caloris Impact Basin
T
T/F mercury has the widest variation in surface tempuratures between night and day of any planet in the solar system
T
T/F Venus can be seen during day time when it is near greatest brilliancy
T
T/F Compared to earth Venus spins very rapidly
F
T/F The terra of Venus are rare but large continent size uplifted regions over a low surface.
T
T/F The surface temp of Venus is nearly 750K, even hotter than mercury
T
How do the atmospheres of the moon and mercury compare?
Neither body has a permanent atmosphere
The lunar mare (Maria) are found:
Almost entirely on Earth side, where the crust was
The lunar highlands are:
More rugged, heavily cratered, and older than the lunar mare.
What is true of the moons orbital and rotational periods?
They are equal
Mercury a surface most resembles that of which body?
The moon
Mercurys Caloris basin is aptly named, since:
It is the hottest region, turning to face the sun when mercury is at perihelion
Venus’s rotation
Takes longer than it’s orbit around the sun.
Through radar observations it was found that Venus’
Rotation on its axis it’s retrograde
Which statement is true of Venus’ surface?
There are two continent sized uplands
Venus has a feature named Aphrodite Terra. What is this feature?
A continental sized plateau
Maxwell moms on Venus is a huge:
Shield volcano
The main problem spacecraft have encountered in landing on Venus is
The extremely high tempuratures
T/F While Mars is half as big as Earth in diameter, it’s surface gravity is only about 40% as strong as the one g (Earths gravity) we experience here on Earth.
T
T/F The low surface gravity helps Martian volcanoes grow to great heights.
T
T/F The polar caps and dust storms of Mars can be seen with Earthbased amateur telescopes
T
T/F the seasonal polar caps on Mars, which grow and shrink over the year, are primarily carbon dioxide.
T
T/F the surface of Mars is surprisingly smooth and featureless
F
T/F mars had a weak magnetic field
T
Why does mars appear fainter than Venus, as seen from earth?
Because it is smaller, farther awaya and less reflective
Which is the correct size order, from smallest to largest?
Mercury mars venus
How long is a day on Mars?
24 hrs 36 min
Where do the names for the moons of Mars (Phobos and Deimos) come from?
The sons of Ares and Aphrodite
The most prominent feature of Mars observable from Earth is
It’s bright polar caps
The deepest depression found on the surface of Mars is the
Hellas basin of Mars
The largest shield volcano yet discovered is
Olympus mons on Mars
The nasa mission that landed on Mars in 1976 were the
Vikings I and II
The Tharsis Bulge on Mars is roughly the size of
North America
What is thought to be the reason that there are no small impact craters on Mars
The surface of Mars is too young to have impact craters
Why is Mars red
The iron in the surface rocks hav been oxidized over time
How many moons does Mars have?
2
