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20 Cards in this Set
- Front
- Back
Law of conservation of energy |
Energy can not be created or destroyed. |
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Carboniferous period |
When most fossil fuels formed |
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Biogenic formation of fossil fuels. |
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Dirtiest of all fossil fuels |
Coal |
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Centrifuge |
Used to enrich uranium |
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Pros of nuclear power |
- no greenhouse gas -no air pollution -no us nuclear accident since 1970 - technology makes it safer |
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Major nuclear accidents |
-three mile island -chernobyl -fukishima |
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Health effects of radiation |
- death - radiation sickness - high levels of cancer - genetic mutations and birth defects - cancer in future generations - environmental contamination |
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Half life |
Time elapsed until half of the radioactive material has decayed and is no longer radioactive. |
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Hazardous life |
10-20 half lives |
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Short term storage of nuclear waste |
Spent fuel rods are stored in water tanks at nuclear power plant. |
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Long term storage of nuclear waste |
Deep underground away from ground water and in a geologically stable sealed in containers. |
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Nimby |
Not in my back yard. |
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Ordinary chemical reactions |
Identity of atom does not change |
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Nuclear reaction |
Identity of atom does change. |
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Fusion |
Merging two nuclei together to form a larger atom. This powers our sun. |
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Fission |
A large atom splits to form a smaller one releasing energy in the process. Nuclear power plants use this. |
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Radiation |
Energy that comes from a source and travels through space and may be able to penetrate certain materials. Light and microwave. |
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Radon |
Is naturally occurring seeps into basements is very common in pa and increases chance of lung cancer as much as smoking. |
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EROEI |
Energy returned on energy invested. |