Physical Science Test: Nuclear Energy
Physical Science Test: Nuclear Energy
Multiple Choice
[pic]
1. How does nuclear fusion create new elements inside stars?
|A. |All the nuclei repel each other because of their positive charges. |
|B. |Small nuclei cause large nuclei to break apart. |
|C. |Large nuclei combine, then form smaller nuclei. |
|D. |Small nuclei combine to form larger nuclei. |
2. The sun is made up mostly of
|A. |hydrogen. |B. |iron. |C. |carbon. |D. |beryllium. |
3. The half-life of calcium-47 is about 5 days. Starting with 64 g of this isotope, what would be the amount remaining after 20 days?
|A. |32 g |B. |16 g |C. |8 g |D. |4 g |
4. Fusion reactions require ____.
|A. |very heavy nuclei. |C. |very rare elements for use as fuel. |
|B. |incredibly high temperatures. |D. |no initial energy. |
5. Which of the following generally have the lowest penetrating ability?
|A. |alpha particles |
|B. |beta particles |
|C. |gamma rays |
|D. |All have the same penetrating ability. |
6. Which of the following has the greatest penetrating ability?
|A. |alpha particles |
|B. |beta particles |
|C. |gamma rays |
|D. |All have the same penetrating ability. |
7. To use radioactive dating for a substance, you must know the substance's
|A. |melting point. |C. |rate of weathering or erosion. |
|B. |half-life. |D. |enthalpy of reaction. |
8. What device uses controlled nuclear fission to produce new radioactive substances and energy?
|A. |synchrotron |C. |nuclear bomb |
|B. |nuclear reactor |D. |linear accelerator |
9. The energy as heat produced by a reactor is used to
|A. |boil water for steam turbines. |C. |produce graphite. |
|B. |melt metal. |D. |produce coal. |
10. The isotope strontium-90 is produced during the testing of nuclear weapons. If 100.0 mg of strontium-90 was released in the atmosphere in 1960, how much of the radioisotope remains 85 years later? The half life of strontium-90 is 29 years.
|A. |13mg |B. |26mg |C. |50mg |D. |42.5mg |
11. A radioactive compound Cobalt-60 has a half-life of 5272.0 years. What will be the amount remaining in a 100.0-g sample after 1600.0 years?
|A. |81.03g |B. |50g |C. |1300g |D. |2631g |
12. Why are cadmium or boron rods used in a nuclear fission reactor?
|A. |To absorb the alpha emission. |C. |To provide chemical combustion. |
|B. |To protect people from radiation. |D. |To absorb neutrons produced. |
13. During the process of electron capture, an electron from outside the nucleus joins with a proton to form ____.
|A. |a neutron. |C. |another proton. |
|B. |a positron. |D. |a gamma ray. |
14. One product of all nuclear fission reactions is ____.
|A. |protons. |B. |energy. |C. |electrons. |D. |neutrons. |
15. One of the most serious problems surrounding the use of nuclear power plants is ____.
|A. |finding a way to dispose of spent fuel rods. |
|B. |the high cost of coolant needed. |
|C. |a lack of uranium. |
|D. |initiating a chain reaction in the fuel. |
16. What does the 4 in [pic] represent?
|A. |the mass number |C. |the number of protons |
|B. |the atomic number |D. |the number of neutrons |
17. What does the 101 in [pic] represent?
|A. |the mass number |C. |the nuclide number |
|B. |the atomic number |D. |the number of neutrons |
18. What does the 218 in polonium-218 represent?
|A. |the mass number |C. |the mass defect |
|B. |the atomic number |D. |the neutron number |
19. The energy released in a nuclear reaction comes from
|A. |electrons. |C. |positrons. |
|B. |bonds. |D. |the binding energy of the nucleus. |
20. Which of the following lists ranks nuclear radiation from most massive to least massive?
|A. |alpha, beta, and gamma |C. |gamma, alpha, and beta |
|B. |beta, gamma, and alpha |D. |gamma, beta, and alpha |
21. Which of the following radioactive decay processes does not reduce the atomic number of a nuclide?
|A. |alpha decay |C. |positron decay |
|B. |beta decay |D. |electron capture |
22. Alpha particles are
|A. |electrons. |C. |electromagnetic waves. |
|B. |helium nuclei. |D. |neutrons. |
23. Beta particles are
|A. |electrons. |C. |electromagnetic waves. |
|B. |helium nuclei. |D. |neutrons. |
24. Gamma rays are
|A. |electrons. |C. |electromagnetic waves. |
|B. |helium nuclei. |D. |neutrons. |
25. Which statement is true about half-lives?
|A. |Different atoms of the same nuclide have different half-lives. |
|B. |Each radioactive isotope has its own half-life. |
|C. |All radioactive nuclides of an element have the same half-life. |
|D. |All radioactive nuclides have the same half-life. |
26. How are elements artificially transmuted?
|A. |Stable nuclei are bombarded with charged particles. |
|B. |Stable nuclei are bombarded with uncharged particles. |
|C. |Stable nuclei are bombarded with charged and uncharged particles. |
|D. |Unstable nuclei are bombarded with charged and uncharged particles. |
27. In an artificial transmutation, what is required to bombard nuclei with positively charged alpha particles, protons, and other ions?
|A. |great quantities of energy |C. |a particle accelerator |
|B. |small quantities of energy |D. |Both (a) and (c) |
28. Some artificial radioactive isotopes can be prepared by bombarding stable nuclei with
|A. |alpha particles. |C. |protons. |
|B. |beta particles. |D. |All of the above |
29. Which of the following travels fastest?
|A. |alpha particles |C. |gamma rays |
|B. |beta particles |D. |All travel at the same speed. |
30. Radioactive tracers are used to
|A. |measure the energy of nuclear reactions. |
|B. |calculate the half-life of a nuclide. |
|C. |estimate the age of a material. |
|D. |follow the movement of substances in a system. |
31. Radioactive tracers in fertilizers can be used to measure
|A. |how well the fertilizer is absorbed by plants. |
|B. |contaminants in the fertilizer. |
|C. |the chemical composition of the fertilizer. |
|D. |how plants respond to radioactivity. |
32. Which of the following processes produces nuclei of lower mass than the reactants?
|A. |fission |C. |Both (a) and (b) |
|B. |fusion |D. |Neither (a) nor (b) |
33. Scientists are investigating the possibility of containing fusion reactions within
|A. |steel containers. |C. |concrete casks. |
|B. |lead containers. |D. |magnetic fields. |
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- 9th grade physical science worksheets
- physical science essay topics
- physical science past exam papers
- physical science grade 11 exams
- physical science grade 12 exam papers
- grade 11 physical science past papers
- physical science ged study guide
- physical science grade 12 past papers
- preschool physical science lesson plan
- best physical science curriculum homeschool
- physical science current events
- 8th grade physical science worksheets pdf