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Flashcards on Large Scale Structure of the Universe
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What does the term 'Large Scale Structure of the Universe' refer to?
The arrangement and distribution of matter on the largest scales in the universe.
What are the main components of the large scale structure of the universe?
Galaxies, galaxy clusters, superclusters, filaments, and cosmic voids.
Which force is primarily responsible for shaping the large scale structure of the universe?
Gravity
What is a galaxy cluster?
A group of galaxies held together by gravitational forces.
What are superclusters?
Clusters of galaxy clusters, the largest known structures in the universe.
What are cosmic voids?
Vast regions of space that contain relatively few galaxies.
What is a filament in the context of large scale structure?
Long and thread-like structures made up of galaxies and gas.
How are cosmic web and large scale structure related?
The cosmic web is a visual representation of the large scale structure of the universe.
How do scientists study the large scale structure of the universe?
By mapping the distribution of galaxies and studying their clustering patterns.
What is the significance of studying the large scale structure of the universe?
It helps us understand the formation and evolution of galaxies and the overall structure of the cosmos.
What is the Great Attractor?
A gravitational anomaly in the large scale structure of the universe that influences the motion of galaxies.
What is the Sloan Great Wall?
One of the largest known structures in the universe, a massive cosmic filament.
What is the difference between a galaxy cluster and a supercluster?
A galaxy cluster is a group of galaxies, while a supercluster is a cluster of galaxy clusters.
What is the role of dark matter in the formation of the large scale structure of the universe?
Dark matter provides the gravitational pull necessary for the formation of structures like galaxy clusters and filaments.
What is the cosmological principle?
The assumption that the universe is homogeneous and isotropic on large scales.
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Test Your Knowledge
Which force is primarily responsible for shaping the large scale structure of the universe?
Electromagnetic force
Strong nuclear force
Weak nuclear force
Gravity
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What is a supercluster?
A large galaxy
A group of stars
A type of black hole
A cluster of galaxy clusters
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What are cosmic voids?
Densely populated areas of galaxies
Giant stars
Alien civilizations
Vast regions of space with few galaxies
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How do scientists study the large scale structure of the universe?
By observing individual stars
By studying microscopic particles
By analyzing rock formations
By mapping the distribution of galaxies
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What is the role of dark matter in the formation of the large scale structure of the universe?
Dark matter has no influence on the large scale structure
Dark matter emits light that helps form structures
Dark matter repels galaxies
Dark matter provides the gravitational pull necessary for structure formation
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What is the significance of studying the large scale structure of the universe?
It helps identify rare astronomical phenomena
It explains the origins of dark matter
It predicts the future of the universe
It helps understand the formation and evolution of galaxies
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What is the Great Attractor?
A famous astronomical observatory
A large asteroid
A powerful telescope
A gravitational anomaly within the large scale structure of the universe
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What is the difference between a galaxy cluster and a supercluster?
A galaxy cluster has more stars than a supercluster
A supercluster has more galaxies than a galaxy cluster
A supercluster contains black holes
A galaxy cluster is a group of galaxies, while a supercluster is a cluster of galaxy clusters
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What is the Sloan Great Wall?
A famous mountain range on Earth
A type of cosmic event
A region rich in asteroids
One of the largest known structures in the universe, a massive cosmic filament
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What is the cosmological principle?
The universe is shrinking
The universe has an infinite number of dimensions
The universe is chaotic
The assumption that the universe is homogeneous and isotropic on large scales
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What is a filament in the context of large scale structure?
A type of gas cloud found in space
A subatomic particle
A small star
A long and thread-like structure made up of galaxies and gas
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