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PBHS Fission & Fusio
Nuclear Fission Terms
| Term | Definition |
|---|---|
| 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
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