CH 8&9 Flashcards

0
Q

T/F mercury has “wierd terrain” directly opposite it’s huge Caloris Impact Basin

A

T

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1
Q

T/F mercury has the widest variation in surface tempuratures between night and day of any planet in the solar system

A

T

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2
Q

T/F Venus can be seen during day time when it is near greatest brilliancy

A

T

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3
Q

T/F Compared to earth Venus spins very rapidly

A

F

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4
Q

T/F The terra of Venus are rare but large continent size uplifted regions over a low surface.

A

T

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5
Q

T/F The surface temp of Venus is nearly 750K, even hotter than mercury

A

T

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6
Q

How do the atmospheres of the moon and mercury compare?

A

Neither body has a permanent atmosphere

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7
Q

The lunar mare (Maria) are found:

A

Almost entirely on Earth side, where the crust was

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8
Q

The lunar highlands are:

A

More rugged, heavily cratered, and older than the lunar mare.

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9
Q

What is true of the moons orbital and rotational periods?

A

They are equal

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10
Q

Mercury a surface most resembles that of which body?

A

The moon

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11
Q

Mercurys Caloris basin is aptly named, since:

A

It is the hottest region, turning to face the sun when mercury is at perihelion

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12
Q

Venus’s rotation

A

Takes longer than it’s orbit around the sun.

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13
Q

Through radar observations it was found that Venus’

A

Rotation on its axis it’s retrograde

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14
Q

Which statement is true of Venus’ surface?

A

There are two continent sized uplands

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15
Q

Venus has a feature named Aphrodite Terra. What is this feature?

A

A continental sized plateau

16
Q

Maxwell moms on Venus is a huge:

A

Shield volcano

17
Q

The main problem spacecraft have encountered in landing on Venus is

A

The extremely high tempuratures

18
Q

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.

A

T

19
Q

T/F The low surface gravity helps Martian volcanoes grow to great heights.

A

T

20
Q

T/F The polar caps and dust storms of Mars can be seen with Earthbased amateur telescopes

A

T

21
Q

T/F the seasonal polar caps on Mars, which grow and shrink over the year, are primarily carbon dioxide.

A

T

22
Q

T/F the surface of Mars is surprisingly smooth and featureless

A

F

23
Q

T/F mars had a weak magnetic field

A

T

24
Q

Why does mars appear fainter than Venus, as seen from earth?

A

Because it is smaller, farther awaya and less reflective

25
Q

Which is the correct size order, from smallest to largest?

A

Mercury mars venus

26
Q

How long is a day on Mars?

A

24 hrs 36 min

27
Q

Where do the names for the moons of Mars (Phobos and Deimos) come from?

A

The sons of Ares and Aphrodite

28
Q

The most prominent feature of Mars observable from Earth is

A

It’s bright polar caps

29
Q

The deepest depression found on the surface of Mars is the

A

Hellas basin of Mars

30
Q

The largest shield volcano yet discovered is

A

Olympus mons on Mars

31
Q

The nasa mission that landed on Mars in 1976 were the

A

Vikings I and II

32
Q

The Tharsis Bulge on Mars is roughly the size of

A

North America

33
Q

What is thought to be the reason that there are no small impact craters on Mars

A

The surface of Mars is too young to have impact craters

34
Q

Why is Mars red

A

The iron in the surface rocks hav been oxidized over time

35
Q

How many moons does Mars have?

A

2