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1 Quizbank/How things work/study guide 2 From Wikiversity HTW T2_Study If you are reading this as a Wikiversity page, proper pagebreaks should result if printed using your browser's print option. On Chrome, Explorer, and Firefox, this option is available in the upper right hand corner of your screen. But, pagebreaks do not render properly if you use "Printable version" on Wikiversity's Print/export option on the left hand sidebar. This document contains either a study guide OR pairs of exams taken from the same exam bank If two exams have the same s number, then v1 and v2 have the same questions, presented in different (random) order. Exams with different s numbers have different questions and may not have the same difficulty. Click items in the table of contents and appropriate page should be reached. This feature should allow you to print only those pages that you need. At the end of this document Attribution for the quizzes identifies where the questions were obtained Study guide links reading materials and/or relevant equations. 1/36

2 HTW T2_Study v1s1 1. If the electron behaved as a classical (non quantum) particle and NOT somehow connected to a spring inside the metal, then one would expect that photoelectrons would be emitted a) at a specific frequency b) above a threshold frequency c) above a threshold intensity d) above a threshold wavelength 2. If the electron behaved as a classical (non quantum) particle and the electron was somehow connected to a spring inside the metal, then one would expect that photoelectrons would be emitted a) above a threshold intensity b) above a thresholdfrequency c) above a threshold wavelength d) at a specific frequency 3. In the photoelectric effect, how was the maximum kinetic energy measured? a) by measuring the wavelength of the light b) by measuring the distance between the electrodes c) by measuring the voltage required to prevent the electrons from passing between the two electrodes. 4. The Industrial Revolution began shortly before a) World War I (1914) b) the American revolution (1776) c) the American civil war (1861) 2/36

3 5. Cartwright built two textile factories. One of them a) is still in use today b) two of these are true c) burned down d) was transported to Germany e) was sabotaged by workers 6. The purpose of Eli Whitney's cotton gin was to a) clean cotton b) remove seeds c) pick cotton d) spin cotton e) weave cotton 7. Manchester acquired the nickname during the early 19th century owing to its sprawl of a) Cokopolis, coke processing plants b) Coalopolis, coal mines c) Cottonopolis, textile factories d) Weavopolis, Weaving factories 8. A major change in the metal industries during the era of the Industrial Revolution was the replacement of wood and other bio fuels with coal. Compared to wood, coal required a) less labour to mine, but was less abundant (until the Rineland coal fields were discovered). b) about the same labour to mine, but was more abundant than wood. c) less labour to mine and was also more abundant. 3/36

4 9. Henry Cort developed rolling, which is 15 times than a) faster, puddling b) cheaper, puddling c) faster, hammering d) cheaper, hammering 10. Puddling involved a) stirring with a long rod and was never successfully mechanised. b) the use of coke instead of coal and led to much strong iron c) the use of coke instead of coal greatly reduced the cost of producing pig iron d) stirring with a long rod and became much cheaper when steam engines replaced manual stirring 11. For most of the period of the Industrial Revolution, the majority of industrial power was supplied by a) water and wind. b) water and steam. c) steam and wind. 12. The Miner's Friend a) was electrical lighting b) transported miners c) pumped water d) provided ventilation 4/36

5 13. According to Wikipedia, the first large machine tool was used to a) plane rails for railroads b) drill coal mines c) bore cylinders for steam engines steam engines. d) shape plates for ship hulls 14. During the Industrial Revolution, the cost of producing sulfuric acid greatly improved by a) replacing iron containers with glass containers b) replacing glass containers with iron containers c) replacing lead containers with glass containers d) replacing glass containers with lead containers 15. The Industrial Revolution lasted just under years a) 500 b) 100 c) 200 d) 300 e) Early uses for sulphuric acid included a) removing rust and bleaching cloth b) making cement and bleaching cloth c) producing dyes and bleaching cloth d) producing dyes and making cement e) removing rust and making cement 5/36

6 17. During the Industrial Revolution, the best Chemists were trained in a) United States b) Great Britain c) Italy d) Germany e) Sweden 18. The dominant industry of the Industrial Revolution in terms of employment, output and invested capital was a) ship building b) railroads c) military spending d) farm equipment e) textiles 19. What impact did the industrial revolution have on living standards of ordinary people, according to Wikipedia? a) little or no growth in the first half, but enormous growth in the second half of the industrial revolution. b) the question is a subject of controversy c) sustained growth, for the first time in history d) little or no growth until much later (19th and 20th centuries) 6/36

7 20. The industrial revolution began in a) Germany b) Great Britain c) United States d) simultaneously in a variety of European nations e) simultaneously in Europe and the United States 21. Which is NOT one of the three areas of development that helped initiate the industrial revolution? a) iron making b) steam power c) assembly lines d) textiles 22. The Calico Acts were initially designed to protect a) large manufacturers b) small manufacturers c) the woollen industry d) domestic cotton production 23. On the eve of the Industrial Revolution, when the textile industry was largely a cottage industry, women did the and men did the. If a loom was used, the work done by the women required person hours. a) spinning, weaving, fewer b) spinning, weaving, more c) weaving, spinning, fewer d) weaving, spinning, more 7/36

8 24. On the eve of the Industrial Revolution, when the textile industry was largely a cottage industry, men did the and women did the. If a loom was used, the work done by the men required person hours. a) spinning, weaving, fewer b) spinning, weaving, more c) weaving, spinning, fewer d) weaving, spinning, more 25. What fraction of the world's electricity was produced by nuclear power in 2012? a) 33% b) 3% c) 63% d) 13% 26. Chadwicks discovery of the neutron was significant because a) neutrons are stable b) neutrons are slow c) neutrons permit induced radiation 27. Neutrons and protons both have "strong" short range interactions with the nucleus. Why can't slow protons be used to cause nuclei to undergo fission? a) protons are positively charged b) slow protons can induce fission but they are too expensive to produce c) protons move at the speed of light d) slow protons are attracted to the nucleus 8/36

9 28. Fermi used to create what he thought was a) "moonshine"; fast neutrons b) slow neutrons; "moonshine" c) transuranic (heavy) elements; a new source of slow neutrons d) slow neutrons; a new element heavier than uranium (called a transuranic element) 29. Fermi thought he had discovered, when he actually discovered a) fusion; hesparium b) hesperium; fission c) hesperium; fusion d) fission; hesparium 30. Which was developed first, nuclear power generation or nuclear weapons? a) nuclear power generation b) nuclear weapons c) they were developed simultaneously 31. The Manhattan project made a) uranium and enriched plutonium b) plutonium and enriched hesparium c) plutonium and enriched uranium 9/36

10 32. The Atomic Age, published in 1945, predicted... a) widespread radiation poisoning b) a world government to prevent nuclear war c) nuclear war d) that fossil fuels would go unused 33. In 1953, "Atoms for Peace" was a) a presidential speech warning of the need for nuclear arms agreements b) a protest movement centered in US universities c) a congressional committee d) a presidential speech promoting nuclear energy production 34. The first nuclear power plant to contribute to the grid was situated in a) Russia b) Oak Ridge c) Great Britain d) Virginia 35. According to Wikipedia, the prediction made in 1954 that electricity would someday be "too cheap to meter" was a) an argument that fossil fuels are so abundant that we don't need nuclear energy b) an effort to promote nuclear fusion as an energy source c) an effort to promote nuclear fission as an energy source 10/36

11 36. How does Wikipedia assess the prospects of commercial fusion power production before 2050? a) expected b) impossible c) likely d) unlikely 37. The third worst nuclear disaster occurred in Russia (1957) and was kept secret for 30 years a) true b) false 38. More US nuclear submarines sank due to nuclear accidents than did Russian submarines a) true b) false 39. The worst nuclear disaster on record occurred in Russia a) true b) false 40. The worldwide number of nuclear reactors and their net capacity grew steadily from 1960, and a) briefly fell sharply after Three Mile Island (1979), rose again, and again fell after Chernobyl (1986) b) leveled off between Three Mile Island (1979) and Chernobyl (1986). c) fluctuated randomly but with a strong correlation with the world economy and price of oil d) did not begin to level off until Chernobyl (1986) 11/36

12 41. In terms of lives lost per unit of energy generated, evidence suggests that nuclear power has caused fatalities per unit of energy generated than the other major sources of energy. a) more b) less c) comparable 42. According to Wikipedia, the amount of green house gasses associated with the construction and maintenance of nuclear power plants is than the emissions associated with other renewable sources (wind, solar, and hydro power.) a) greater b) less c) about the same 43. Estimates of additional nuclear generating capacity to be built by 2035 fell by percent after the Fukushima nuclear accident in a) 10 b) 50 c) From the figure depicting percentage of power produced by nuclear power plants, we see that the proper ranking from greatest to least reliance on nuclear power for three nations is a) United States, France, with Turkey least reliant. b) France,Turkey, with the United States least reliant. c) France, United States, with Turkey least reliant. d) United States, Turkey, France least reliant. 12/36

13 45. It was discovered that radioactive elements released immense amounts of energy according to the principle of mass energy equivalence in the a) late 19th century b) early 19th century c) early 20th century 46. Chadwick's discovery of the neutron was significant because neutrons a) are an excellent fuel for nuclear power b) can be used to create radioactive material at a low price c) are not radioactive 47. Ernest Rutherford's "moonshine" was a) what he called the idea of harnessing nuclear power b) what he called alpha particles c) what he called the idea of relying on fossil fuels d) what called neutrons 48. In a PWR reactor, the water is kept under high pressure a) to reduce the heat required to boil it b) to prevent it from boiling c) to slow down the neutrons d) only in the reactor core 13/36

14 49. A 2008 report from Oak Ridge National Laboratory concluded that the dose to the public from radiation from properly run nuclear plants is the radiation created by burning coal a) 10 times less than b) about the same as c) 100 times more than d) 10 times more than e) 100 times less than 50. One concern is that long term nuclear waste management is now being performed by a number of private waste management companies a) true b) false 51. The Waste Isolation Pilot Plant in New Mexico a) is currently taking nuclear waste from production reactors b) was originally a research and development facility but is now under private ownership c) can no longer nuclear waste from production reactors because it is full 52. In the United States, reprocessing of spent Uranium a) is not allowed due to waste management concerns b) is not allowed due to nuclear weapon proliferation concerns c) provides 20% of our fuel needs and allows the United States to export nuclear fuel d) provides 5% of our fuel needs which is consumed within the United states 14/36

15 53. The reprocessing of spent Uranium worsens the problem of long term waste storage a) true b) false 54. The reprocessing of spent Uranium helps alleviate the problem of long term waste storage a) true b) false 55. Nuclear power plants typically have a) high capital costs and low fuel costs b) low capital costs and high fuel costs c) high capital costs and high fuel costs d) low capital costs and low fuel costs 56. How many latent (cancer) deaths are estimated to result from the Three Mile Island accident? a) from 0 to 1000 b) zero c) from 4000 to 25, It has been estimated that if Japan had never adopted nuclear power, the use of other fuels would have caused more lost years of life. a) true b) false 15/36

16 58. It has been estimated that farmland lost due to Fukushima accident will be again useful for farming in years a) true b) false 59. Fuel rods spend typically total now inside the reactor, generally until of their uranium has been fissioned a) 6 years; 3% b) 6 months; 3% c) 6 months; 30% d) 6 years; 30% 60. It has been estimated that farmland lost due to Fukushima accident will not be farmed for centuries a) true b) false 61. The Megatons to Megawatts Program a) converts weapons grade uranium into fuel for commercial reactors, and is considered a success b) converts weapons grade uranium into fuel for commercial reactors, and is considered a failure c) purchases spent fuel that could otherwise be used to make weapons, and is considered a success d) purchases spent fuel that could otherwise be used to make weapons, and is considered a failure 16/36

17 62. After about in a spent fuel pool the spent fuel can be moved to dry storage casks or reprocessed. a) 50 years b) 5 years c) 5 months 63. Uranium is approximately than silver in the Earth's crust. a) 4 times less common b) 40 times more common c) 4 times more common d) 40 times less common 64. Reactors that use natural (unenriched) uranium are a) considered impossible b) are likely to emerge in the next few decades c) are already in use 65. Fast breeder reactors use uranium 238, an isotope which constitutes of naturally occurring uranium a) 99% b) 60% c) 30% d) 1 % e) 3% 17/36

18 66. One concern about fast breeder reactors is that the uranium reserves will be exhausted more quickly a) true b) false 67. High level radioactive waste management is a daunting problem because a) the isotopes are short lived b) the isotopes are long lived c) they cannot be stored underground 68. A 2008 report from Oak Ridge National Laboratory concluded that the dose to the public from radiation from coal plants is the radiation nuclear plants (excluding the possibility of accidental discharges of radioactive material a) 100 times less than b) 100 times more than c) about the same as d) 10 times more than e) 10 times less than 18/36

19 Key to HTW T2_Study v1s1 1. If the electron behaved as a classical (non quantum) particle and NOT somehow connected to a spring inside the metal, then one would expect that photoelectrons would be emitted a) at a specific frequency b) above a threshold frequency + c) above a threshold intensity d) above a threshold wavelength 2. If the electron behaved as a classical (non quantum) particle and the electron was somehow connected to a spring inside the metal, then one would expect that photoelectrons would be emitted a) above a threshold intensity b) above a thresholdfrequency c) above a threshold wavelength + d) at a specific frequency 3. In the photoelectric effect, how was the maximum kinetic energy measured? a) by measuring the wavelength of the light b) by measuring the distance between the electrodes + c) by measuring the voltage required to prevent the electrons from passing between the two electrodes. 4. The Industrial Revolution began shortly before a) World War I (1914) + b) the American revolution (1776) c) the American civil war (1861) 19/36

20 5. Cartwright built two textile factories. One of them a) is still in use today + b) two of these are true c) burned down d) was transported to Germany e) was sabotaged by workers 6. The purpose of Eli Whitney's cotton gin was to a) clean cotton + b) remove seeds c) pick cotton d) spin cotton e) weave cotton 7. Manchester acquired the nickname during the early 19th century owing to its sprawl of a) Cokopolis, coke processing plants b) Coalopolis, coal mines + c) Cottonopolis, textile factories d) Weavopolis, Weaving factories 8. A major change in the metal industries during the era of the Industrial Revolution was the replacement of wood and other bio fuels with coal. Compared to wood, coal required a) less labour to mine, but was less abundant (until the Rineland coal fields were discovered). b) about the same labour to mine, but was more abundant than wood. + c) less labour to mine and was also more abundant. 20/36

21 9. Henry Cort developed rolling, which is 15 times than a) faster, puddling b) cheaper, puddling + c) faster, hammering d) cheaper, hammering 10. Puddling involved + a) stirring with a long rod and was never successfully mechanised. b) the use of coke instead of coal and led to much strong iron c) the use of coke instead of coal greatly reduced the cost of producing pig iron d) stirring with a long rod and became much cheaper when steam engines replaced manual stirring 11. For most of the period of the Industrial Revolution, the majority of industrial power was supplied by + a) water and wind. b) water and steam. c) steam and wind. 12. The Miner's Friend a) was electrical lighting b) transported miners + c) pumped water d) provided ventilation 21/36

22 13. According to Wikipedia, the first large machine tool was used to a) plane rails for railroads b) drill coal mines + c) bore cylinders for steam engines steam engines. d) shape plates for ship hulls 14. During the Industrial Revolution, the cost of producing sulfuric acid greatly improved by a) replacing iron containers with glass containers b) replacing glass containers with iron containers c) replacing lead containers with glass containers + d) replacing glass containers with lead containers 15. The Industrial Revolution lasted just under years a) b) 100 c) 200 d) 300 e) Early uses for sulphuric acid included + a) removing rust and bleaching cloth b) making cement and bleaching cloth c) producing dyes and bleaching cloth d) producing dyes and making cement e) removing rust and making cement 22/36

23 17. During the Industrial Revolution, the best Chemists were trained in a) United States b) Great Britain c) Italy + d) Germany e) Sweden 18. The dominant industry of the Industrial Revolution in terms of employment, output and invested capital was a) ship building b) railroads c) military spending d) farm equipment + e) textiles 19. What impact did the industrial revolution have on living standards of ordinary people, according to Wikipedia? a) little or no growth in the first half, but enormous growth in the second half of the industrial revolution. + b) the question is a subject of controversy c) sustained growth, for the first time in history d) little or no growth until much later (19th and 20th centuries) 23/36

24 20. The industrial revolution began in a) Germany + b) Great Britain c) United States d) simultaneously in a variety of European nations e) simultaneously in Europe and the United States 21. Which is NOT one of the three areas of development that helped initiate the industrial revolution? a) iron making b) steam power + c) assembly lines d) textiles 22. The Calico Acts were initially designed to protect a) large manufacturers b) small manufacturers + c) the woollen industry d) domestic cotton production 23. On the eve of the Industrial Revolution, when the textile industry was largely a cottage industry, women did the and men did the. If a loom was used, the work done by the women required person hours. a) spinning, weaving, fewer + b) spinning, weaving, more c) weaving, spinning, fewer d) weaving, spinning, more 24/36

25 24. On the eve of the Industrial Revolution, when the textile industry was largely a cottage industry, men did the and women did the. If a loom was used, the work done by the men required person hours. a) spinning, weaving, fewer b) spinning, weaving, more + c) weaving, spinning, fewer d) weaving, spinning, more 25. What fraction of the world's electricity was produced by nuclear power in 2012? a) 33% b) 3% c) 63% + d) 13% 26. Chadwicks discovery of the neutron was significant because a) neutrons are stable b) neutrons are slow + c) neutrons permit induced radiation 27. Neutrons and protons both have "strong" short range interactions with the nucleus. Why can't slow protons be used to cause nuclei to undergo fission? + a) protons are positively charged b) slow protons can induce fission but they are too expensive to produce c) protons move at the speed of light d) slow protons are attracted to the nucleus 25/36

26 28. Fermi used to create what he thought was a) "moonshine"; fast neutrons b) slow neutrons; "moonshine" c) transuranic (heavy) elements; a new source of slow neutrons + d) slow neutrons; a new element heavier than uranium (called a transuranic element) 29. Fermi thought he had discovered, when he actually discovered a) fusion; hesparium + b) hesperium; fission c) hesperium; fusion d) fission; hesparium 30. Which was developed first, nuclear power generation or nuclear weapons? a) nuclear power generation + b) nuclear weapons c) they were developed simultaneously 31. The Manhattan project made a) uranium and enriched plutonium b) plutonium and enriched hesparium + c) plutonium and enriched uranium 26/36

27 32. The Atomic Age, published in 1945, predicted... a) widespread radiation poisoning b) a world government to prevent nuclear war c) nuclear war + d) that fossil fuels would go unused 33. In 1953, "Atoms for Peace" was a) a presidential speech warning of the need for nuclear arms agreements b) a protest movement centered in US universities c) a congressional committee + d) a presidential speech promoting nuclear energy production 34. The first nuclear power plant to contribute to the grid was situated in + a) Russia b) Oak Ridge c) Great Britain d) Virginia 35. According to Wikipedia, the prediction made in 1954 that electricity would someday be "too cheap to meter" was a) an argument that fossil fuels are so abundant that we don't need nuclear energy + b) an effort to promote nuclear fusion as an energy source c) an effort to promote nuclear fission as an energy source 27/36

28 36. How does Wikipedia assess the prospects of commercial fusion power production before 2050? a) expected b) impossible c) likely + d) unlikely 37. The third worst nuclear disaster occurred in Russia (1957) and was kept secret for 30 years + a) true b) false 38. More US nuclear submarines sank due to nuclear accidents than did Russian submarines a) true + b) false 39. The worst nuclear disaster on record occurred in Russia a) true + b) false 40. The worldwide number of nuclear reactors and their net capacity grew steadily from 1960, and a) briefly fell sharply after Three Mile Island (1979), rose again, and again fell after Chernobyl (1986) + b) leveled off between Three Mile Island (1979) and Chernobyl (1986). c) fluctuated randomly but with a strong correlation with the world economy and price of oil d) did not begin to level off until Chernobyl (1986) 28/36

29 41. In terms of lives lost per unit of energy generated, evidence suggests that nuclear power has caused fatalities per unit of energy generated than the other major sources of energy. a) more b) less + c) comparable 42. According to Wikipedia, the amount of green house gasses associated with the construction and maintenance of nuclear power plants is than the emissions associated with other renewable sources (wind, solar, and hydro power.) a) greater b) less + c) about the same 43. Estimates of additional nuclear generating capacity to be built by 2035 fell by percent after the Fukushima nuclear accident in a) 10 + b) 50 c) From the figure depicting percentage of power produced by nuclear power plants, we see that the proper ranking from greatest to least reliance on nuclear power for three nations is a) United States, France, with Turkey least reliant. b) France,Turkey, with the United States least reliant. + c) France, United States, with Turkey least reliant. d) United States, Turkey, France least reliant. 29/36

30 45. It was discovered that radioactive elements released immense amounts of energy according to the principle of mass energy equivalence in the a) late 19th century b) early 19th century + c) early 20th century 46. Chadwick's discovery of the neutron was significant because neutrons a) are an excellent fuel for nuclear power + b) can be used to create radioactive material at a low price c) are not radioactive 47. Ernest Rutherford's "moonshine" was + a) what he called the idea of harnessing nuclear power b) what he called alpha particles c) what he called the idea of relying on fossil fuels d) what called neutrons 48. In a PWR reactor, the water is kept under high pressure a) to reduce the heat required to boil it + b) to prevent it from boiling c) to slow down the neutrons d) only in the reactor core 30/36

31 49. A 2008 report from Oak Ridge National Laboratory concluded that the dose to the public from radiation from properly run nuclear plants is the radiation created by burning coal a) 10 times less than b) about the same as c) 100 times more than d) 10 times more than + e) 100 times less than 50. One concern is that long term nuclear waste management is now being performed by a number of private waste management companies a) true + b) false 51. The Waste Isolation Pilot Plant in New Mexico + a) is currently taking nuclear waste from production reactors b) was originally a research and development facility but is now under private ownership c) can no longer nuclear waste from production reactors because it is full 52. In the United States, reprocessing of spent Uranium a) is not allowed due to waste management concerns + b) is not allowed due to nuclear weapon proliferation concerns c) provides 20% of our fuel needs and allows the United States to export nuclear fuel d) provides 5% of our fuel needs which is consumed within the United states 31/36

32 53. The reprocessing of spent Uranium worsens the problem of long term waste storage a) true + b) false 54. The reprocessing of spent Uranium helps alleviate the problem of long term waste storage + a) true b) false 55. Nuclear power plants typically have + a) high capital costs and low fuel costs b) low capital costs and high fuel costs c) high capital costs and high fuel costs d) low capital costs and low fuel costs 56. How many latent (cancer) deaths are estimated to result from the Three Mile Island accident? a) from 0 to b) zero c) from 4000 to 25, It has been estimated that if Japan had never adopted nuclear power, the use of other fuels would have caused more lost years of life. + a) true b) false 32/36

33 58. It has been estimated that farmland lost due to Fukushima accident will be again useful for farming in years a) true + b) false 59. Fuel rods spend typically total now inside the reactor, generally until of their uranium has been fissioned + a) 6 years; 3% b) 6 months; 3% c) 6 months; 30% d) 6 years; 30% 60. It has been estimated that farmland lost due to Fukushima accident will not be farmed for centuries + a) true b) false 61. The Megatons to Megawatts Program + a) converts weapons grade uranium into fuel for commercial reactors, and is considered a success b) converts weapons grade uranium into fuel for commercial reactors, and is considered a failure c) purchases spent fuel that could otherwise be used to make weapons, and is considered a success d) purchases spent fuel that could otherwise be used to make weapons, and is considered a failure 33/36

34 62. After about in a spent fuel pool the spent fuel can be moved to dry storage casks or reprocessed. a) 50 years + b) 5 years c) 5 months 63. Uranium is approximately than silver in the Earth's crust. a) 4 times less common + b) 40 times more common c) 4 times more common d) 40 times less common 64. Reactors that use natural (unenriched) uranium are a) considered impossible b) are likely to emerge in the next few decades + c) are already in use 65. Fast breeder reactors use uranium 238, an isotope which constitutes of naturally occurring uranium + a) 99% b) 60% c) 30% d) 1 % e) 3% 34/36

35 66. One concern about fast breeder reactors is that the uranium reserves will be exhausted more quickly a) true + b) false 67. High level radioactive waste management is a daunting problem because a) the isotopes are short lived + b) the isotopes are long lived c) they cannot be stored underground 68. A 2008 report from Oak Ridge National Laboratory concluded that the dose to the public from radiation from coal plants is the radiation nuclear plants (excluding the possibility of accidental discharges of radioactive material a) 100 times less than + b) 100 times more than c) about the same as d) 10 times more than e) 10 times less than 35/36

36 Attribution (for quiz questions) under CC by SA license title=quantum_mechanics/photoelectric_effect/quiz&oldid= title=how_things_work_college_course/industrial_revolution_quiz&oldid= Study guide Retrieved from " title=quizbank/how_things_work/study_guide_2&oldid= " This page was last modified on 10 August 2015, at 19:33. Text is available under the Creative Commons Attribution ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. 36/36