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PBHS Fission & Fusio

Nuclear Fission Terms

TermDefinition
fission Splitting a heavy nucleus into lighter nuclei using a bullet.
spontaneous A nucleus splitting on its own without assistance into two lighter nuclei is called this kind of fission.
neutron This particle enters an unstable nucleus to make it split into 2 lighter nuclei.
bullet This is what the neutron used to get a nucleus to go through fission is called.
neutral A neutron is used as the fission reaction bullet because of its charge which is this.
E = mc squared Both nuclear fission and nuclear fusion utilize this equation of Einstein's.
light In Einstein's mass-energy equation, c is the speed of this.
constant The speed of light in Einstein's equation is represented by c which stands for the universal this.
uranium The fuel of choice for nuclear fission power plants in the U.S. is this element.
plutonium The other fuel besides uranium used in nuclear fission power plants in many part of the world is this.
steam The thermal energy created through nuclear fission is used to convert liquid water into this.
moderator The material used in a fission reactor to keep the neutrons at the best, slower speed is called this.
control rods These are used to absorb neutrons to keep the fission reaction at the right level.
Chernobyl The site of the biggest nuclear accident in what is now the Ukraine.
Three Mile Island The worst nuclear accident occurred at this location in Pennsylvania in 1979.
Japan The most recent nuclear accident was started by flooding water at the Fukushima Daiishi plant from an earthquake in this country.
nucleons Fission only works with nuclei that have very large numbers of these.
nucleus Nucleons are particles (protons and neutrons) that are part of this.
energy Compared to chemical reactions fission reactions give off 10 to 20 million times more of this.
self sustaining In order to be used for power or for a weapon, a fission reaction must be able to keep itself going which is called being this.
electromagnetic The generator at a power plant produces electricity though this kind of induction.
magnets A generator usually uses many, many, many loops of wire and giant ones of these.
turbine In power plants where a fuel is "burned" to produce electricity, steam is used to turn this.
fusion Two lighter nuclei joining together to form one, larger nucleus.
hydrogen All stars like the sun start out in life fusing this element into helium.
temperature This must be extremely high to make nuclear fusion work.
plasma An ionized gas is this.
magnetic field In nuclear fusion, the hot, hot plasma must be contained by this.
helium All stars like the sun are fusing hydrogen into this during their lives as a main sequence star.
light Nuclear fusion only works with nuclei that are very, very this.
Created by: gkarlish