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Astronomy Chapter 6, 9 Flashcards | StudBud
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Astronomy Chapter 6, 9
Astronomy Chapter 6, 9
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Formation of the solar system
Flashcards
32 cards
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Questions
32
Answers
1
What are asteroids?
Pieces of dust
Small rounded worlds of ice & rock, found beyond Neptune
Small irregular bodies of rock & metal
Small irregular bodies of ice & rock
2
Nebular theory does
not
state...
the sun formed from the collapse of a spinning cloud
only the sun formed from the collapse of a spinning cloud
the planets formed from the collapse of a spinning cloud
asteroids/comets formed from the collapse of spinning cloud
3
Asteroids and Comets are...
pieces of planets that broke off during asteroid impacts
leftover pieces from the formation of the solar system
miniature planets that orbit the sun
pieces of destroyed planets
4
An older surface of planet or moon can be distinguished by...
more impact craters
less volcanoess
less impact craters
more volcanoes
5
What is accretion?
process where smaller bodies break apart
process that forms planetestimals
process that forms impact craters
process where smaller bodies combine into bigger bodies
6
The Solar nebula primarily consisted of...
Hydrogen
Hydrogen Compounds
Hydrogen & Helium compounds
Hydrogen and Helium Gas
7
What are the dwarf planets?
Small irregular bodies of ice & rock
Small irregular bodies of rock & metal
Small rounded worlds of ice & rock, found beyond Neptune
Pieces of dust
8
Where are asteroids usually located?
In a spherical cloud that surrounds the entire solar system
In a belt beyond the orbit of Neptune
within the orbit of Mercury
In a belt between Mars & Jupiter
9
What wasn't one of the effects that happened during the collapse of the solar nebula?
Spinning
Flattening
Cooling
Heating
10
What was the Late Heavy Bombardment ?
A time when all the asteroids hit the Earth
A future event of planetary collisions
The event that wiped out the dinosaurs
Intense planetary collisions during the younger solar system
11
What is differentiation?
Where volcanoes erupt creating new surface layers
Where forces (wind, water & ice) evolve a surface
Where layers in planet form from different densities
Where plate tectonics shift into different layers
12
Which process shapes Earth's surface through surface disruption by internal stress?
Erosion
Volcanism
Impact Cratering
Tectonics
13
How do we know the age of the solar system?
Through hypothetical models
Radiometric dating
Analyzing rocks
Measuring of Half-life
14
Planets were formed from
gas that first solidified into tiny solid particles
, this is called...
Composition
Evaporation
Precipitation
Condensation
15
Ice is a type of...
Helium Compound
Iron Compund
Hydrogen Compound
Carbon compound
16
What generates Earth's magnetic field?
The growing and shrinking of the core
Convection of molten metal in the outer core
The movement of the crust
Tidal heating
17
A planet's internal geological activity and magnetic field is determined by...
Its activity in its core
Its size
The moons it posses
How close it is to the sun
18
What are the terrestrial planets?
The larger, gaseous, planets that are farther from the sun
The planets that are small, rocky, and closer to the sun
Mercury, Venus, Earth, Mars
Jupiter, Saturn, Uranus, Neptune
19
Which process shapes Earth's surface through surface disruption by internal stress?
Volcanism
Impact Cratering
Tectonics
Erosion
20
What are some of the exceptions that contradict nebular theory?
Venus' large moon, Uranus spins backwards
Venus rotates backwards, Uranus on its side, Earth's moon
There are no exceptions
Venus & Uranus rotate backwards
21
What are the Jovian planets?
Mercury, Venus, Earth, Mars
The planets that are small, rocky, and closer to the sun
Jupiter, Saturn, Uranus, Neptune
The larger, gaseous, planets that are farther from the sun
22
Where are comets usually located?
In a belt beyond the orbit of Neptune
within the orbit of Mercury
In a spherical cloud that surrounds the entire solar system
In a belt between Mars & Jupiter
23
Which process shapes Earth's surface through eruption of molten rock ?
Impact Cratering
Tectonics
Erosion
Volcanism
24
What is likely factors contributed to the exceptions (Earth's moon, Uranus/Venus' rotation)?
the sun
No explanation
irregular formation in the solar system
giant impacts
25
Which process shapes Earth's surface through wearing and building by wind, water, & ice?
Impact Cratering
Volcanism
Erosion
Tectonics
26
The planets do
not
orbit:
in the same direction as rotation
clockwise
on the same plane
counterclockwise
27
What is the frost line?
A region in the solar system within which ices form
A physical line in the solar system
a region beyond which hydrogen compounds solidify
the separation between temperatures in the solar system
28
How old is the solar system estimated to be?
5 billion years
4.5 billion years
14 billion years
4.5 million years
29
What are comets?
Small irregular bodies of rock & metal
Pieces of dust
Small rounded worlds of ice & rock, found beyond Neptune
Small irregular bodies of ice & rock
30
What is the Kuiper belt
A belt of icy bodies just beyond Neptune that includes Pluto
A spherical cloud of comets that surrounds the solar system
31
The
theory
of solar system formation is called...
Solar Nebula Theory
Orion Nebula
Big Bang Theory
Nebular Theory
32
Which process shapes Earth's surface through external asteroid/comet strikes
Volcanism
Impact Cratering
Tectonics
Erosion
