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Grades 11 and 12 - Physics - Senior High School - Radioactivity - Nuclear Fission
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Grades 11 and 12 - Physics - Senior High School - Radioactivity - Nuclear Fission
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10 Questions

1. In a nuclear reactor, water is used as a moderator. What is a moderator?
2. What is nuclear fission?
3. What is a disadvantage of nuclear fission?
4. What happens to the excess neutrons?
5. Which two fissionable substances are commonly used in nuclear reactors?
6. In nuclear power stations, a chain reaction is required. What is a chain reaction?
7. What must a nucleus absorb for fission to occur?
8. What happens to the atom after it absorbs a neutron?
9. If Uranium-235 and one neutron are collided together they can create one Kr92 and 1 Ba142. In this circumstance, how many free neutrons are released in this reaction?
10. What is an advantage of nuclear fission?

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