Nuclear fission and fusion Quiz
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5 questions, one answer each
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1. Which nucleus is at the maximum of the binding energy per nucleon curve?
- A. Hydrogen-2
- B. Helium-4
- C. Iron-56
- D. Uranium-235
2. Why can fission of uranium-235 release energy?
- A. The fragments have a higher binding energy per nucleon
- B. The fragments have more nucleons
- C. Uranium-235 has no binding energy
- D. Neutrons are destroyed
3. Which reaction would NOT release energy?
- A. Fusion of hydrogen-2 nuclei
- B. Fission of uranium-235
- C. Fusion of two hydrogen-3 nuclei
- D. Fission of iron-56 into lighter nuclei
4. What conditions are needed for fusion?
- A. Low temperature and low density
- B. High temperature and low density
- C. Low temperature and high density
- D. Very high temperature and very high density
5. A nucleus of 200 nucleons with 7.8 MeV per nucleon splits into two nuclei, each of 100 nucleons with 8.4 MeV per nucleon. How much energy is released?
- A. 0.6 MeV
- B. 60 MeV
- C. 120 MeV
- D. 1680 MeV