Question 1

Explain Mercury's peculiar rotation and revolution. How is it different than most other planets?

Accepted Answer

Mercury is tidally coupled to the Sun bu...

Question 2

Lobate scarps are very low and small disturbances on the surface of Mercury.

Accepted Answer

A) True 
 B)False

Question 3

What surprised scientists to learn about Mercury from MESSENGER's data?

Accepted Answer

A)   Mercury is still geologically active with molten lava flows on the surface.
B)   Mercury does have an atmosphere causing some erosion of the surface.
C)   Mercury has significantly more craters than the Moon.
D)   Mercury has a magnetic field despite its size.
E)   Mercury is rotating faster than earlier predicted.

Question 4

What space mission is currently exploring Mercury? What information has this mission so far provided about the planet?

Accepted Answer

A new spacecraft called MESSENGER (Mercu...

Question 5

The lunar rocks brought back by the Apollo astronauts contained a surprisingly large amount of water.

Accepted Answer

A) True 
 B)False

Question 6

The Moon's gravity is only _______________ that of Earth.

Accepted Answer

one sixth,...

Question 7

What may have caused Mercury to have a large metallic core and a relatively thin crust?

Accepted Answer

A)   a large impact
B)   tidal coupling with the Sun
C)   solar wind clearing the nebula
D)   a slow orbital period
E)   a long period of flooding

Question 8

It is believed that a giant impact may have taken away some of Mercury's low-density crustal rock and left a small, dense world with a(n) large, dense, and _______________ core.

Accepted Answer

The answer of It is believed that a giant impact...

Question 9

The relationship between the rotation of Mercury and its revolution is referred as a(n) _______________.

Accepted Answer

The answer of The relationship between the rotation of Mercury...

Question 10

Between July 1969 and December 1972, 17 people reached the surface of the Moon.

Accepted Answer

A) True 
 B)False

Question 11

The Moon's crust is thicker on the side facing Earth.

Accepted Answer

A) True 
 B)False

Question 12

What is the Moon's gravity?

Accepted Answer

A)   There is no gravity on the Moon.
B)   1/3 of Earth's gravity
C)   1/2 of Earth's gravity
D)   1/6 of Earth's gravity
E)   The Moon's gravity is the same as that of Earth.

Question 13

The presence of _______________ increases the possibility that a human lunar base may be established someday.

Accepted Answer

The answer of The presence of _______________ increases the possibility...

Question 14

Many Moon rocks are classified as _______________, which are made up of fragments of earlier rocks cemented together by heat and pressure.

Accepted Answer

The answer of Many Moon rocks are classified as _______________,...

Question 15

During which stage of planetary development did the lunar maria form?

Accepted Answer

A)   cratering
B)   differentiation
C)   flooding
D)   tectonic plate movement
E)   slow surface evolution

Question 16

Explain the three different hypotheses for the origin of the Moon and how evidence from the Apollo lunar rocks persuaded scientists to develop a new hypothesis.

Accepted Answer

The fission hypothesis proposed that the...

Question 17

What was the purpose of the LCROSS mission?

Accepted Answer

A)   To determine if lava still flowed beneath the crust
B)   To generate an altitude map of the Moon's surface
C)   To photograph geological features of the Moon
D)   To photograph geological features of the Moon.
E)   To determine if there is water ice buried in soil of the Moon's south pole

Question 18

Briefly describe Mercury's geological history through the four steps of planetary development.

Accepted Answer

differentiation: Mercury is surprisingly...

Question 19

Debris blasted from the impact of a crater is called ____.

Accepted Answer

A)   ejecta
B)   maria
C)   sinuous rilles
D)   multiringed basin
E)   central peak

Question 20

Which mission has recently provided scientists with information about Mercury's magnetic field?

Accepted Answer

A)   Magellan
B)   MESSENGER
C)   LCROSS
D)   Voyager
E)   Apollo

Exam 21: The Moon and Mercury

Explain the three different hypotheses for the origin of the Moon and how evidence from the Apollo lunar rocks persuaded scientists to develop a new hypothesis.

Correct AnswerverifiedThe fission hypothesis proposed that the...View AnswerShow Answer

What surprised scientists to learn about Mercury from MESSENGER's data?

Correct AnswerverifiedShow Answer

Explain Mercury's peculiar rotation and revolution. How is it different than most other planets?

Correct AnswerverifiedMercury is tidally coupled to the Sun bu...View AnswerShow Answer

The Moon's gravity is only _______________ that of Earth.

Correct Answerverifiedone sixth,...View AnswerShow Answer

Lobate scarps are very low and small disturbances on the surface of Mercury.

Correct AnswerverifiedShow Answer

The Moon's crust is thicker on the side facing Earth.

Correct AnswerverifiedShow Answer

The presence of _______________ increases the possibility that a human lunar base may be established someday.

Correct AnswerverifiedShow Answer

It is believed that a giant impact may have taken away some of Mercury's low-density crustal rock and left a small, dense world with a(n) large, dense, and _______________ core.

Correct AnswerverifiedShow Answer

Many Moon rocks are classified as _______________, which are made up of fragments of earlier rocks cemented together by heat and pressure.

Correct AnswerverifiedShow Answer

What was the purpose of the LCROSS mission?

Correct AnswerverifiedShow Answer

Which mission has recently provided scientists with information about Mercury's magnetic field?

Correct AnswerverifiedShow Answer

What may have caused Mercury to have a large metallic core and a relatively thin crust?

Correct AnswerverifiedShow Answer

During which stage of planetary development did the lunar maria form?

Correct AnswerverifiedShow Answer

What space mission is currently exploring Mercury? What information has this mission so far provided about the planet?

Correct AnswerverifiedA new spacecraft called MESSENGER (Mercu...View AnswerShow Answer

What is the Moon's gravity?

Correct AnswerverifiedShow Answer

Between July 1969 and December 1972, 17 people reached the surface of the Moon.

Correct AnswerverifiedShow Answer

Debris blasted from the impact of a crater is called ____.

Correct AnswerverifiedShow Answer

The lunar rocks brought back by the Apollo astronauts contained a surprisingly large amount of water.

Correct AnswerverifiedShow Answer

Briefly describe Mercury's geological history through the four steps of planetary development.

Correct Answerverifieddifferentiation: Mercury is surprisingly...View AnswerShow Answer

The relationship between the rotation of Mercury and its revolution is referred as a(n) _______________.

Correct AnswerverifiedShow Answer

Correct Answer
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The fission hypothesis proposed that the...
View Answer

Correct Answer
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Correct Answer
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Mercury is tidally coupled to the Sun bu...
View Answer

Correct Answer
verified
one sixth,...
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A new spacecraft called MESSENGER (Mercu...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
differentiation: Mercury is surprisingly...
View Answer

Correct Answer
verified