Astronomy college course/Mercury/questions

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image gallery for this quiz. With experimental sticky note paste-in
Shortest period b/c it's closest.  (As per Kepler' III) Law
Synodic =  as seen from earth.  Syn = together as in Jewish Synagog
Proximity to Sun: Morning and Evening "star".
Rotation is tidally or gravitationally locked in 3:2 resonance (review Earth moon situaton, resonance is 3x=2y)
Highly elliptical orbit: Speeds up and slows down
Looks like Moon: dead "inactive" geology billions of years.  Solar sytem is 5 billion years, Universe is 15 billion (roughly).

AstroMercury_Study

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AstroMercury_Study-v1s1

1.
horizontal crack
The horizontal crack along the center of figure is a
___ a) meander
___ b) scarp
___ c) rille
___ d) antipodal
___ e) propodal


2. Antipodal to Caloris Basin is

___ a) an iron/nickel deposit
___ b) a scarp
___ c) a water deposits
___ d) weird terrain
___ e) a silicon deposits


3. A volatile is a substance that

___ a) reacts violently with acids
___ b) reacts violently with oxygen
___ c) reacts violently with water
___ d) melts or evaporates at low temperature
___ e) melts or evaporates at high temperature


4. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of ___ and ___.

___ a) carbon and oxygen
___ b) metal and rock
___ c) ice and rock
___ d) ice and water
___ e) ice and gas


5. If the universe is mostly hydrogen, why aren't terrestrial planets made of mostly hydrogen?

___ a) tidal forces between the terrestrial planets prevented accretion
___ b) tidal forces from the Sun prevented accretion
___ c) thermonuclear fusion in the protosun turned the hydrogen into helium
___ d) These planets lie inside the frost line for hydrogen
___ e) tidal forces from Jupiter prevented accretion


6. Mercury's atmosphere consists mostly of

___ a) carbon dioxide
___ b) hydrogen
___ c) nitrogen
___ d) oxygen
___ e) helium


7. In what sequence did Mercury's weird terrain and Caloris basin form?

___ a) The weird terrain was formed a few millions years after the Caloris basin
___ b) The weird terrain was formed approximately 2 billions years before the Caloris basin
___ c) The weird terrain was formed approximately 2 billions years after the Caloris basin
___ d) The were formed at exactly the same time
___ e) The weird terrain was formed almost immediately after the Caloris basin


Key to AstroMercury_Study-v1s1

1.
horizontal crack
The horizontal crack along the center of figure is a
- a) meander
+ b) scarp
- c) rille
- d) antipodal
- e) propodal


2. Antipodal to Caloris Basin is

- a) an iron/nickel deposit
- b) a scarp
- c) a water deposits
+ d) weird terrain
- e) a silicon deposits


3. A volatile is a substance that

- a) reacts violently with acids
- b) reacts violently with oxygen
- c) reacts violently with water
+ d) melts or evaporates at low temperature
- e) melts or evaporates at high temperature


4. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of ___ and ___.

- a) carbon and oxygen
+ b) metal and rock
- c) ice and rock
- d) ice and water
- e) ice and gas


5. If the universe is mostly hydrogen, why aren't terrestrial planets made of mostly hydrogen?

- a) tidal forces between the terrestrial planets prevented accretion
- b) tidal forces from the Sun prevented accretion
- c) thermonuclear fusion in the protosun turned the hydrogen into helium
+ d) These planets lie inside the frost line for hydrogen
- e) tidal forces from Jupiter prevented accretion


6. Mercury's atmosphere consists mostly of

- a) carbon dioxide
+ b) hydrogen
- c) nitrogen
- d) oxygen
- e) helium


7. In what sequence did Mercury's weird terrain and Caloris basin form?

- a) The weird terrain was formed a few millions years after the Caloris basin
- b) The weird terrain was formed approximately 2 billions years before the Caloris basin
- c) The weird terrain was formed approximately 2 billions years after the Caloris basin
- d) The were formed at exactly the same time
+ e) The weird terrain was formed almost immediately after the Caloris basin


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http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Mercury/questions&oldid=1388427
Study guide
http://en.wikiversity.org/w/index.php?title=Astronomy_college_course/Mercury&oldid=1381954