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| 1 | |
Which subatomic particle has the smallest mass? |
| | A) | electron |
| | B) | neutron |
| | C) | proton |
| | D) | They all have the same mass. |
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| 2 | |
Which of these is a pair of isotopes? |
| | A) | O2 and O3 |
| | B) | Na+ and Na |
| | C) | Cl-35 and Cl-37 |
| | D) | F and Cl |
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| 3 | |
The symbol for the isotope that contains 20 neutrons and 17 protons is _______. |
| | A) | Ca-37 |
| | B) | Cl-37 |
| | C) | Rb-20 |
| | D) | Rb-17 |
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| 4 | |
The nucleus of Pu-242 contains ______ protons and ______ neutrons. |
| | A) | 242, 94 |
| | B) | 148, 94 |
| | C) | 94, 148 |
| | D) | 94, 238 |
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| 5 | |
Gamma rays are a type of electromagnetic radiation. When compared to ultraviolet radiation, gamma rays have ________ energy and a __________ wavelength. |
| | A) | lower, longer |
| | B) | lower, shorter |
| | C) | higher, shorter |
| | D) | higher, longer |
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| 6 | |
Consider this reaction:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ1_eq1.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
What is X? |
| | A) | gamma ray |
| | B) | beta particle |
| | C) | alpha particle |
| | D) | proton |
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| 7 | |
This figure shows a radioactive source that emits alpha, beta, and gamma radiation. Which number identifies which type of emission?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ_image1.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>]]>
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| | A) | 1 = gamma, 2 = beta, 3 = alpha |
| | B) | 1 = beta, 2 = gamma, 3 = alpha |
| | C) | 1 = beta, 2 = alpha, 3 = gamma |
| | D) | 1 = alpha, 2 = gamma, 3 = beta |
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| 8 | |
For most people, the largest contributor to their annual dose of radiation is _________. |
| | A) | cosmic rays |
| | B) | uranium |
| | C) | plutonium |
| | D) | radon |
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| 9 | |
The half-life of C-14 is 5470 years. If a particular archeological sample has one-quarter of its original radioactivity remaining, what is the best estimate for its age? |
| | A) | 1430 years |
| | B) | 2860 years |
| | C) | 5720 years |
| | D) | 11,400 years |
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| 10 | |
You have a sample of radioactive iodine-131 (half-life = 8 days). If 24 days (3 half-lives) were to pass, then _____ of its radioactivity would remain. |
| | A) | 1/3 |
| | B) | 1/4 |
| | C) | 1/8 |
| | D) | 1/24 |
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| 11 | |
In the relationship E = mc2, the letter c represents |
| | A) | the speed of the particles emitted in a nuclear reaction. |
| | B) | the Celsius temperature of the nuclear reaction. |
| | C) | the speed of light. |
| | D) | the difference between the masses of the reactants and those of the products. |
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| 12 | |
The primary source of energy in a nuclear power plant is the ________ of uranium. |
| | A) | alpha decay |
| | B) | nuclear fission |
| | C) | beta decay |
| | D) | gamma decay |
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| 13 | |
Which statement about nuclear fission is correct? |
| | A) | The fission process can be sustained by a chain reaction. |
| | B) | Fission involves splitting a larger nucleus into smaller ones. |
| | C) | Fission is the process used to produce energy both in nuclear power plants and in atomic bombs |
| | D) | All of these statements are correct. |
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| 14 | |
Which nuclear equation most likely represents a chain reaction? |
| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ1_eq2.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>]]>
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| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ1_eq3.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>]]>
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| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ1_eq4.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>]]>
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| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ1_eq5.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>]]> |
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| 15 | |
Depleted uranium (DU) |
| | A) | is not radioactive. |
| | B) | contains a lower % of U-238 than its natural abundance. |
| | C) | contains a higher % of U-238 than its natural abundance. |
| | D) | has no known uses. |
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| 16 | |
Which statement about Pu-239 is correct? |
| | A) | Pu-239 is fissionable and has the potential to be recovered from spent fuel rods and used for weapons. |
| | B) | Pu-239 is fissionable, but cannot be recovered from spent fuel rods. |
| | C) | Pu-239 is not fissionable so there is no weapons market for it. |
| | D) | Pu-239 is not fissionable, but it is useful in hospitals to treat cancer. |
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| 17 | |
This diagram shows the reactor core in a typical nuclear power plant. The control rods made of _______________, and they can be _________.
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0073048763/232425/Ch7_SQ_image2.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (13.0K)</a>]]>
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| | A) | neutron-producing materials such as boron, automatically dropped into the core to initiate the nuclear reaction. |
| | B) | high quality stainless steel, raised or lowered to extract the heat generated by the energy of fission. |
| | C) | neutron-absorbing materials such as cadmium, raised or lowered to regulate the power level of the reactor. |
| | D) | uranium pellets, inserted individually to achieve the mass needed for the fission reaction. |
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| 18 | |
As of 2008, what happens to spent fuel rods at U.S. nuclear power plants? |
| | A) | The rods are transported by truck and rail to the High-Level Waste federal repository at Yucca Mountain, Nevada. |
| | B) | The rods are stored on-site in steel-lined water-filled concrete containers or placed in dry cask storage. |
| | C) | The rods are sent to a reprocessing facility, which then returns new fuel pellets to the power plant. |
| | D) | The rods are transported by train to the salt mine storage facility in southeastern New Mexico. |
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| 19 | |
Nuclear accidents with significant radiation leaks and many human fatalities have occurred at which location? |
| | A) | Three Mile Island |
| | B) | Chernobyl |
| | C) | Seabrook |
| | D) | Nuclear accidents involving significant radiation leaks and many human fatalities have occurred at all three facilities. |
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| 20 | |
Which factor(s) support the use of nuclear power in the United States?
I. excellent record of safety
II. concerns about global warming
III. rising crude oil prices
IV. concerns about long-term storage of waste
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| | A) | I and III only |
| | B) | II and IV only |
| | C) | I, II, and III only |
| | D) | I, II, III, and IV |
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