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Crash Course 9-The Solar System Flashcards | StudBud
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Crash Course 9-The Solar System
Crash Course 9-The Solar System
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StudBud Administration
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@0 Multiple choice on the Episode 9 of Crash Course Astronomy
Flashcards
20 cards
F
Practice quiz
P
Host live
L
Questions
20
Answers
1
What shape are the orbits of planets according to Kepler's model?
Square
Elliptical
Circular
Triangular
2
What region lies between Mars and Jupiter?
Kuiper Belt
Oort Cloud
Asteroid Belt
Orion Belt
3
What effect does angular momentum have on the solar system cloud as it collapses?
It turns the cloud into a sphere
It creates a disk shape
It causes random spinning
It slows the collapse
4
Why is defining a 'planet' challenging?
Only objects with moons qualify
Every definition has many exceptions
Only objects orbiting other stars qualify
Only round objects can be planets
5
Who improved the heliocentric model by proposing elliptical orbits?
Galileo
Kepler
Copernicus
Aristotle
6
What objects are included in the term 'solar system'?
Only the Sun and planets
Sun, planets, moons, asteroids, comets, dust, and thin gas
Only planets and asteroids
Only the Sun and comets
7
How was the original solar system cloud thought to have collapsed?
Only gravitational pull from Earth
Shockwave from a nearby star or another cloud
Collision with the Moon
Internal heating only
8
What planets formed farther from the Sun, according to the transcript?
Gas giants
Rocky planets
Only Mars
Only Earth
9
Which planet is the largest in the solar system?
Saturn
Neptune
Earth
Jupiter
10
Where is the Oort Cloud located in the solar system?
Far beyond Neptune
Just outside Earth’s atmosphere
Between Mars and Jupiter
Near the Sun
11
What is a protostar?
A planet in formation
A young star in formation
An advanced galaxy
A type of comet
12
What objects are found in the Kuiper Belt?
Rocky ice balls
Stars
Gas giants
Rocky planets
13
What did the geocentric model suggest?
The Earth orbits the Moon
The planets orbit each other
The Earth orbits the Sun
The Sun orbits the Earth
14
What effect did Jupiter’s gravity have on nearby planetesimals?
It stabilized them into planets
It scattered them apart
It pulled them closer
It formed moons
15
Who proposed the early heliocentric model in ancient Greece?
Aristotle
Copernicus
Ptolemy
Aristarchus
16
Where did icy objects in the solar system primarily form?
Within the Oort Cloud
Near the Sun
Between Earth and Mars
Beyond Neptune
17
How much of the solar system's mass does the Sun comprise?
About 25%
About 75%
About 50%
More than 98%
18
What term does the word 'solar' come from?
Stars
Earth
Sol
Light
19
What does the video describe as the origin of the atoms in our bodies?
Dense solar material
Earth’s core
Star-forming clouds
Only the Sun
20
Why is the solar system mostly flat in structure?
Planets have strong mutual repulsion
Because of random motion
Only circular orbits are stable
Due to gravity shaping a collapsing disk
