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- 1. Multiple Choice
__________________ occurs when the repelling electrical forces within a nucleus overpowers the attracting the attracting nuclear forces.
Nuclear Decay
Nuclear Fission
Nuclear Fusion
None of the above
- 2. Multiple Choice
__________________ is the process in which two or more smaller nuclei combine to create a larger, more stable nuclei.
Nuclear Decay
Nuclear Fission
Nuclear Fusion
None of the above
- 3. Multiple Choice
Where do chain reactions not occur and why?
The rare isotope U-235; as the U-235 absorbs neutrons, the chain reaction stops
Uranium ore deposits; as the U-238 absorbs electrons, the chain reaction stops
Uranium ore deposits; as the U-238 absorbs neutrons, the chain reaction stops
The rare isotope U-235; as the U-235 absorbs electrons, the chain reaction stops
- 4. Multiple Choice
What is the major drawback to fission power?
Radioactive Waste
CO2 Emissions
SO2 Emissions
All of the Above
- 5. Multiple Choice
In the equation E=mc2, which of the following correctly represents one or constants?
M=the sum of the masses
E= the amount of energy absorbed
C2= the speed of light
All of the above
- 6. Multiple Choice
T/F The three components of a nuclear fission reactor are the nuclear fuel combined with a moderator, the control rods, and water.
True
False
- 7. Multiple Choice
In what order are high-energy lasers used to control nuclear fusion?
1.Steam is produced
2.Drop frozen pellets of hydrogen isotopes through the crossfire
3.Aim laser beams at a common point
4.The resulting heat will be carried off by molten Lithium
3 – 2 – 4 – 1
2 – 1 – 3 – 4
3 – 2 – 1 – 4
1 – 3 – 2 – 4
- 8. Multiple Choice
A __________________ is a nuclear fission reactor that produces more nuclear fuel than it consumes.
Fission Reactor
Breeder Reactor
Core Reactor
Fusion Reactor
- 9. Multiple Choice
What is NOT a benefit of a fission reactor?
Conserves Energy
Supplies plentiful energy
Produces carbon dioxide and other greenhouse gasses
Eliminates a megaton of sulfur oxides
- 10. Multiple Choice
What does a magnetic bottle contain for fission research?
Atoms
Protons
Electrons
Plasmas
- 11. Multiple Choice
How much of the total energy used in the United States is created by nuclear fission reactors?
1%
19%
68%
90%
- 12. Multiple Choice
What deformation leads to fission and what forces dominate over the attracting nuclear forces?
Cellular deformation; attracting electrical forces
Nuclear deformation; repelling electrical forces
Cellular deformation; repelling electrical forces
Nuclear deformation; attracting electrical forces
- 13. Multiple Choice
T/F When the process of fission releases energy, the total mass of the element is less than when it started.
True
False
- 14. Multiple Choice
In nuclear reactions, the result is __________ bound nuclei.
Slightly stronger
Looser
More tightly
None of these
- 15. Multiple Choice
What remains unchanged in a fusion event?
The number of nucleons
The number of protons
Energy
The number of electrons
- 16. Multiple Choice
What is a tiny packet of energy that makes up light?
Proton
Neutron
Photon
Positron
- 17. Multiple Choice
The most powerful laser, the Nova, can be found where?
NASA
Lawrence Livermore Laboratory
NOAA
This doesn’t exist
- 18. Multiple Choice
At what speeds do atomic nuclei collide for fusion to occur and what charge do they have?
High speeds; positively charged
Low speeds; positively charged
High speeds; negatively charged
None of these
- 19. Multiple Choice
In fusion, what problem does a magnetic field solve?
It gets too cold and the machines freeze up
Too much pressure accumulates during fusion
For funzies
The heat produced in fusion melts the materials of the container
- 20. Multiple Choice
How do you calculate the mass per nucleon if you know the mass of a particular nucleus?
Add the number of nucleons to the mass of nucleus
Multiply mass of nucleus by the number of nucleons in it
Divide number of nucleons by the mass of nucleus
Divide mass of nucleus by the number of nucleons in it
- 21. Multiple Choice
What is the half-life of plutonium?
18 months
24,000 years
10 days
50,000 years
- 22. Multiple Choice
T/F Most nuclear fission reactions produce either 1 or 3 neutrons.
True
False
- 23. Multiple Choice
___________ starts the fission of a uranium atom.
Energy
Protons
One Neutron
All of the above
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