Nuclear fission — definition?
Splitting of a large nucleus releasing energy.
Chain reaction — role?
Self-sustaining process of successive fissions.
Unstable nucleus — role?
Splits upon neutron absorption, releasing neutrons.
Neutron absorption — process?
Nucleus takes in a neutron, increasing instability.
Fission reactors — main component?
Contain uranium fuel, control rods, moderator.
Control rods — function?
Absorb neutrons to control reaction speed.
Moderator — purpose?
Slows neutrons to increase absorption likelihood.
Reactor shielding — purpose?
Protects from harmful radiation.
Nuclear power — advantage?
Produces lots of electricity with low CO2.
Nuclear waste — challenge?
Must be stored safely long-term.
Chernobyl accident — year?
1986, caused by uncontrolled chain reaction.
Chernobyl — cause?
Control rods removed, leading to overheating.
Global use — themes?
Societal, environmental, economic reasons.
Nuclear fusion — process?
Nuclei join to release energy.
Answer 14 questions on Introduction to Nuclear Fission and Fusion.
1. What happens in nuclear fission?
2. Why does a chain reaction continue after the first fission?
Go over the full study guide for Introduction to Nuclear Fission and Fusion.
Read the study guide →Upload your class notes and Revizly writes your flashcards in about a minute.
Flashcard maker