nuclear fission These are flash cards on the AQA additional science P2.1- Nuclear fission 0.0 / 5 ? PhysicsRadioactivityGCSEAQA Created by: EliseCeriCreated on: 10-04-15 11:50 What is Nuclear fission? The splitting of a nucleus into two aprox equal fragments. 1 of 9 What is released in fission? Two to three neutrons 2 of 9 When does a chain reaction occur? When each fission event causes further fission events. 3 of 9 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 4 of 9 What two nuclei do we use for nuclear fission? Uranium-235 and Plutonium- 238 5 of 9 What nuclei does NOT undergo fission? Uranium- 238 6 of 9 What does Uranium-238 turn into during fission? Plutonium-239 7 of 9 How do you control chain reactions? Control rods 8 of 9 What do control rods do? Absorb fission neutrons to ensure that only one neutron per fission goes on to produce further fission. 9 of 9
Comments
No comments have yet been made