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Energy From the Atom – Part IV

QUIZ IV: FISSION AND CHAIN REACTIONS

  1.  The splitting of an atomic nucleus is called _____.
  2. An isotope that has a nucleus that can be split is said to be a _____ _____.
  3. When a uranium nucleus fissions, it splits into lighter nuclei which we call _____ _____.
  4. During the fission process the uranium-235 nucleus will also shoot out _____ which will strike other uranium-235 nuclei.
  5. The slowing down and stopping of the fast-moving fission products produces _____ energy.
  6. The process of continuing fissioning of atoms is called _____ _____.
  7. Because uranim-238 can be transformed into plutonium-239 when it absorbs a neutron, it is called a _____ isotope.
Check your answers

ANSWER KEY:  

1. fission

2. fissionable isotope

3. fission products

4. neutrons

5. heat

6. chain reaction

7. fertile

 


 

 

1. The splitting of an atomic nucleus is called fission.

2. An isotope that has a nucleus that can be split is said to be a fissionable isotope

3. When a uranium nucleus fissions, it splits into lighter nuclei which we call fission products.

4. During the fission process the uranium-235 nucleus will also shoot out neutrons which will strike other uranium-235 nuclei.

5. The slowing down and stopping of the fast-moving fission products produces heat energy.

6. The process of continuing fissioning of atoms is called a chain reaction.

7. Because uranim-238 can be transformed into plutonium-239 when it absorbs a neutron, it is called a fertile isotope.

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