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Comparative Planetology Review Flashcards | StudBud
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Comparative Planetology Review
Comparative Planetology Review
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1
Through Telescope observations you find an exoplanet with a very thin CO
2
atmosphere. It is likely that...
It is very large
It is not actually a planet
It is close to its sun
It is far from its sun
2
What is false about comets?
Their orbits are much more elliptical than the planets
They're mostly ice and dust
They mostly move in the same plane as the planets
Their tail always points away from the sun
3
Helium is about 25% of Jupiter
True
False
4
Which is not a defining characteristic of a planet?
Orbits a sun
Gravitationally Dominant
Round
Has a Moon
5
Why is Jupiter so much bigger than other planets?
Close to Sun during formation
Older than other
Far from sun during formation
Younger than others
6
What was the makeup of the Protoplanetary disc?
50% H2, 50% He
100% H2
75% He, 25%H2
25% He, 75%H2
7
Saturn is the only planet with rings
True
False
8
You find a new solar system with a planet made of mostly hydrogen. It also find a second planet, further from the sun.
It could easily be either rocky or gassy
This can't happen.
It is likely a rocky planet
It is likely also mostly hydrogen
9
Where are you most likely to find life
Mars
Jupiter
Mercury
Earth
10
Which is not a way Moons are made?
Explosion from Planet
Spontaneous Generation
Asteroid Capture
11
Which has a thicker atmosphere?
Venus
It varies
They're basically the same
Earth
12
Which is bigger?
They're the same
Jupiter
Earth
It varies
13
Helium is about 25% of our entire solar system
True
False
14
Why is Jupiter 25% He, 75% H
2
?
Same as Uranus
Less H2 than Saturn
Same as Earth
Same as the Sun
15
Mar's moon Phobos is most similar to...
An asteroid
Jupiter
Earth's Moon
Mars
16
Our Moon is unusual because...
It is relatively big
It is not the same material as Earth
It is relatively small
It has not atmosphere
17
Venus has fewer visible craters than Mars. Which is not a good reason?
Very little "weather" on Mars
Acid rain on Venus
Venus is hotter
Thick Atmosphere on Venus
18
Why didn't Jupiter become a star?
It has moons
Too far from the Center
Wrong materials
Too small
19
Pluto is a planet
True
False
20
Which is not true about comets?
They are mostly ice
The always have a tail
They are relatively small
They have highly elliptical orbits
21
The Earth's makeup is most similar to
Mars
Jupiter
Venus
The Moon
22
Which Earth property is significantly different from Venus
Temperature
Type of planet
Size
Gravity
23
Which type of planet is far away from the Sun?
Magnetic
Jovian
Terrestrial
Spherical
24
Which is not a Terrestrial Planet
Earth
Jupiter
Mercury
Mars
25
Why are all the planets moving in the same direction?
That's the direction the protoplanetary disc spun
Because that's the way the sun pulled them
Pure luck. It didn't have to be that way
They don't, this is untrue
