nuclear fission

These are flash cards on the AQA additional science P2.1- Nuclear fission 

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  • Created by: EliseCeri
  • Created on: 10-04-15 11:50
What is Nuclear fission?
The splitting of a nucleus into two aprox equal fragments.
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What is released in fission?
Two to three neutrons
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When does a chain reaction occur?
When each fission event causes further fission events.
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What is the process of nuclear fission?
1) a neutron hits a nucleus 2) the nucleus splits 3) neutrons are released 4) energy is released
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What two nuclei do we use for nuclear fission?
Uranium-235 and Plutonium- 238
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What nuclei does NOT undergo fission?
Uranium- 238
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What does Uranium-238 turn into during fission?
Plutonium-239
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How do you control chain reactions?
Control rods
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What do control rods do?
Absorb fission neutrons to ensure that only one neutron per fission goes on to produce further fission.
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Other cards in this set

Card 2

Front

What is released in fission?

Back

Two to three neutrons

Card 3

Front

When does a chain reaction occur?

Back

Preview of the front of card 3

Card 4

Front

What is the process of nuclear fission?

Back

Preview of the front of card 4

Card 5

Front

What two nuclei do we use for nuclear fission?

Back

Preview of the front of card 5
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