Question 1

Mercury's magnetic field is surprisingly comparable to the Earth's field in strength.

Accepted Answer

A) True 
 B)False

Question 2

One of the effects of Mercury's very slow spin is:

Accepted Answer

A)  extreme variations in its surface temperature.
B)  an intensely powerful magnetic field.
C)  tectonic activity.
D)  wind patterns that are slow, but global in size.
E)  large variations in the size of its polar cap.F) A) and B)
G) A) and C)

Question 3

Mercury's surface most resembles which of these?

Accepted Answer

A)  the Earth's deserts
B)  the lunar far side
C)  the lunar mare
D)  Venus's polar regions
E)  Mars's desertsF) B) and C)
G) B) and E)

Question 4

The best way to find the exact distance to the Moon is to:

Accepted Answer

A)  measure its exact size in the telescope.
B)  use radar reflection times, about 2.56 second.
C)  bounce lasers off the retroreflectors left on the surface by the Apollo landings.
D)  make parallax measurements from observatories on opposite sides of the Earth.
E)  use stellar occultations for precise timings of the Moon's position.F) B) and E)
G) C) and E)

Question 5

Astronomers believe that the Moon did not differentiate to the same degree as Earth because:

Accepted Answer

A)  the Moon was made of solid debris, not liquids like our hydrosphere.
B)  the meteors that hit the Moon were lighter than those that hit us, so did not generate as muchheat on the surface.
C)  the less dense and smaller Moon did not have as much radioactivity as the larger Earth in itscore.
D)  the Moon was formed after the Earth was, so its radioactivity was less.
E)  the Moon was made of very different materials than our mantle and crust.F) A) and E)
G) A) and D)

Question 6

Would an observer on Mercury see the Sun rise in the east or the west?

Accepted Answer

Most of the time, the Sun woul...

Question 7

The orbit of Mercury is more elliptical than that of any other terrestrial planet.

Accepted Answer

A) True 
 B)False

Question 8

Moonquakes on the Moon were detected by:

Accepted Answer

A)  the radar observations over time from Earth.
B)  the seismographs left there by the Apollo astronauts.
C)  laser beams reflected off mirrors left on the Moon by Apollo missions.
D)  seismographs attached to the Russian Lunar rovers.
E)  telescopic observations of lunar landslides.F) A) and D)
G) All of the above

Question 9

What is the reason that it is so difficult to view Mercury from Earth?

Accepted Answer

A)  Mercury is very dim.
B)  Mercury is very small.
C)  Mercury can't be seen at night.
D)  Mercury is often hidden by the Moon.
E)  Mercury is always very close to the Sun.F) B) and E)
G) C) and D)

Question 10

How does Mercury's magnetic field compare to our own?

Accepted Answer

A)  Like Venus, Mercury has no detectable magnetic field.
B)  Like Mars and the Earth, it too has undergone polarity reversals.
C)  It is 1/100th as strong as ours, but does deflect the solar wind to some degree.
D)  It is amazingly strong, comparable to our own.
E)  It was predicted from Mercury's rapid rotation and molten core.F) D) and E)
G) B) and D)

Question 11

Because of its high mean density and magnetic field, Mercury's large core must be madechiefly of ________.

Accepted Answer

The answer of Because of its high mean density and...

Question 12

In our solar system, scarps are only found on Mercury.

Accepted Answer

A) True 
 B)False  False

Question 13

Two Mercury years are the same length as three Mercury sidereal days.

Accepted Answer

A) True 
 B)False

Question 14

The Moon's huge Mare Orientale basin has a twin on Mercury named:

Accepted Answer

A)  Galileo.
B)  Caloris.
C)  Mare Marineris.
D)  the weird terrain.
E)  Valhalla.F) A) and E)
G) A) and C) B

Question 15

Why does the Moon lack a true atmosphere?

Accepted Answer

Its atmosphere escaped into sp...

Question 16

The lunar highlands are:

Accepted Answer

A)  more rugged, heavily cratered, and older than the lunar mare.
B)  made of lighter colored, younger rocks than the mare.
C)  formed by plate tectonics, like the Earth's Himalayas.
D)  formed by volcanic eruptions, much like our Andes.
E)  brighter than the mare, since they are covered with reflective glass from the rays.F) A) and E)
G) B) and C)

Question 17

Our Moon is in a 1:1 synch, with a lunar rotation equaling an Earth year.

Accepted Answer

A) True 
 B)False

Question 18

How are surfaces of Mercury and the Moon similar? Different? Why?

Accepted Answer

Both are airless worlds with many ancien...

Question 19

How are the polar regions of Mercury and the Moon similar?

Accepted Answer

A)  Both are covered by huge mare-type basins from impacts.
B)  Both seem to have ice pockets in the deepest, darkest crater floors.
C)  Both have bright dry ice polar caps, like Mars.
D)  Both have lakes of liquid water under their regolith.
E)  Both have been hit by large comets that melted there.F) B) and C)
G) A) and B)

Question 20

The most recent features on the Moon's surface are the bright rayed craters like Copernicus,sitting atop the older mare flows.

Accepted Answer

A) True 
 B)False  True

Exam 8: The Moon and Mercury: Scorched and Battered Worlds

Mercury's magnetic field is surprisingly comparable to the Earth's field in strength.

Correct AnswerverifiedShow Answer

One of the effects of Mercury's very slow spin is:

Correct AnswerverifiedShow Answer

Mercury's surface most resembles which of these?

Correct AnswerverifiedShow Answer

The best way to find the exact distance to the Moon is to:

Correct AnswerverifiedShow Answer

Astronomers believe that the Moon did not differentiate to the same degree as Earth because:

Correct AnswerverifiedShow Answer

Would an observer on Mercury see the Sun rise in the east or the west?

Correct AnswerverifiedMost of the time, the Sun woul...View AnswerShow Answer

The orbit of Mercury is more elliptical than that of any other terrestrial planet.

Correct AnswerverifiedShow Answer

Moonquakes on the Moon were detected by:

Correct AnswerverifiedShow Answer

What is the reason that it is so difficult to view Mercury from Earth?

Correct AnswerverifiedShow Answer

How does Mercury's magnetic field compare to our own?

Correct AnswerverifiedShow Answer

Because of its high mean density and magnetic field, Mercury's large core must be madechiefly of ________.

Correct AnswerverifiedShow Answer

In our solar system, scarps are only found on Mercury.

Correct AnswerverifiedFalse

Two Mercury years are the same length as three Mercury sidereal days.

Correct AnswerverifiedShow Answer

The Moon's huge Mare Orientale basin has a twin on Mercury named:

Correct AnswerverifiedB

Why does the Moon lack a true atmosphere?

Correct AnswerverifiedIts atmosphere escaped into sp...View AnswerShow Answer

The lunar highlands are:

Correct AnswerverifiedShow Answer

Our Moon is in a 1:1 synch, with a lunar rotation equaling an Earth year.

Correct AnswerverifiedShow Answer

How are surfaces of Mercury and the Moon similar? Different? Why?

Correct AnswerverifiedBoth are airless worlds with many ancien...View AnswerShow Answer

How are the polar regions of Mercury and the Moon similar?

Correct AnswerverifiedShow Answer

The most recent features on the Moon's surface are the bright rayed craters like Copernicus,sitting atop the older mare flows.

Correct AnswerverifiedTrue

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Most of the time, the Sun woul...
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False

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B

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Its atmosphere escaped into sp...
View Answer

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Both are airless worlds with many ancien...
View Answer

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True