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Flashcards on Fusion and Stellar Processes
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What is fusion?
The process of combining atomic nuclei to form a heavier nucleus and release a large amount of energy.
What are stellar processes?
Nuclear reactions and other processes occurring in stars.
What is the main stellar process that powers most stars?
Nuclear fusion
What are the fuel sources for fusion reactions in stars?
Hydrogen and helium
What factors determine if a star will undergo fusion?
Temperature and pressure
What are the four main stellar processes?
Nuclear fusion, stellar evolution, nucleosynthesis, and supernova explosions
What is the end result of fusion in stars?
The creation of heavier elements and release of energy
Which stellar process is responsible for the production of elements heavier than iron?
Supernova explosions
What are the three types of fusion reactions that occur in stars?
Proton-proton chain, CNO cycle, and triple-alpha process
What is nucleosynthesis?
The process by which new atomic nuclei are formed from pre-existing nuclei
Which stellar process is responsible for the formation of heavier elements such as gold and uranium?
Nucleosynthesis
What happens during a supernova explosion?
A massive explosion that occurs at the end of a star's life, releasing an enormous amount of energy and creating heavy elements
What is the fusion process that occurs in our Sun?
Proton-proton chain
What is the CNO cycle?
A fusion process that occurs in stars more massive than the Sun
What is the triple-alpha process?
A fusion process that occurs in very massive stars
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Test Your Knowledge
What is fusion?
The process of combining atomic nuclei to form a heavier nucleus and release a large amount of energy.
The process of splitting atomic nuclei to release energy.
The process of converting mass into energy.
The process of fusing atoms together to create new elements.
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What are the fuel sources for fusion reactions in stars?
Oxygen and carbon
Hydrogen and helium
Iron and nickel
Nitrogen and sulfur
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What factors determine if a star will undergo fusion?
Temperature and pressure
Mass and size
Distance from other stars
Age and composition
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What is the main stellar process that powers most stars?
Nuclear fusion
Nuclear fission
Electromagnetic radiation
Gravitational collapse
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What are the four main stellar processes?
Nuclear fission, stellar evolution, nucleosynthesis, and black hole formation
Nuclear fusion, stellar evolution, stellar rotation, and planetary formation
Nuclear fusion, stellar evolution, nucleosynthesis, and supernova explosions
Nuclear fusion, stellar evolution, nebula formation, and galactic collisions
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Which stellar process is responsible for the production of elements heavier than iron?
Nuclear fusion
Nuclear fission
Supernova explosions
Stellar evolution
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What are the three types of fusion reactions that occur in stars?
Alpha-alpha process, gamma-ray burst, and neutron capture
Proton-proton chain, CNO cycle, and triple-alpha process
Beta decay, gamma-ray emission, and electron capture
Nuclear fission, nuclear fusion, and radioactive decay
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What is nucleosynthesis?
The process of splitting atomic nuclei to release energy
The process of converting mass into energy
The process by which new atomic nuclei are formed from pre-existing nuclei
The process of fusing atoms together to create new elements
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What happens during a supernova explosion?
Nuclear fission occurs, releasing a large amount of energy
A massive explosion that occurs at the end of a star's life, releasing an enormous amount of energy and creating heavy elements
The star collapses under its own gravity, forming a black hole
The star expands into a red giant, shedding its outer layers and forming a white dwarf
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What is the fusion process that occurs in our Sun?
Proton-proton chain
CNO cycle
Triple-alpha process
Alpha-alpha process
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