Energy Unit Review Sheet - A Name ______
7th Grade Environmental Science
Mrs. Krempa Date & Section ______
Multiple Choice – Circle the letter to the answer that best completes each sentence. Try and NOT use your
notes to complete this review! Make a mark next to those questions you can not remember to help you study!
1. Fourth (last) stage in coal formation.
A. Anthracite B. Bituminous C. Lignite D. Peat
2. Third stage in coal formation.
A. Anthracite B. Bituminous C. Lignite D. Peat
3. “Soft” coal.
A. Anthracite B. Bituminous C. Lignite D. Peat
4. “Hard” coal.
A. Anthracite B. Bituminous C. Lignite D. Peat
5. Second stage in coal formation.
A. Anthracite B. Bituminous C. Lignite D. Peat
6. Shiny black color, located deep within the earth.
A. Anthracite B. Bituminous C. Lignite D. Peat
7. Burns hotter and with less smoke. Main fuel used in industry.
A. Anthracite B. Bituminous C. Lignite D. Peat
8. First stage in coal formation.
A. Anthracite B. Bituminous C. Lignite D. Peat
9. Looks like wood, located near the earth’s surface.
A. Anthracite B. Bituminous C. Lignite D. Peat
10. Clean burning, considered to be the “best” form of coal.
A. Anthracite B. Bituminous C. Lignite D. Peat
11. Substances that provide energy as the result of a chemical change are called?
A. fertilizers B. reserves C. fuel s D. petroleum
12. What is the type of fuel most used in generating electricity?
A. coal B. petroleum C. nuclear D. natural gas
13. What is the main gas that makes up natural gas?
A. octane B. ethane C. methane D. propane
14. What is petroleum?
A. a liquid fossil fuel B. a.k.a “crude oil” C. Both A & B D. none are correct
15. In an electric power plant, turbines are turned using which type of energy from steam?
A. mechanical energy B. electricity
C. chemical energy D. nuclear energy
16. The process of burning a fuel to change chemical energy into thermal energy is called?
A. heat B. electricity C. energy D. combustion
17. Coal formation is largely the result of …
A. climate B. magma C. sedimentation D. humidity
18. Which of the following products can petroleum be refined into?
A. plastics B. medicine C. fabric D. all of these
19. Which of the following is NOT a common use for coal.
A. generate electricity B. produce heat energy C. auto fuel D. all are uses
20. Which of the following is a common use for natural gas?
A. generate electricity B. home heating C. auto fuel D. none are uses
21. Why is petroleum considered to be a non-renewable resource?
A. petroleum source is unlimited B. petroleum source is limited
C. petroleum source can refill D. new sources of petroleum can be found
22.
23. Alternative energy sources must be found because…
A. not enough energy resources are available to meet future energy needs
B. no clean sources of energy exist today
C. some energy sources do not pollute the environment
D. the future energy needs of society are diminishing
24. Fossil fuels do NOT include…
A. coal B. natural gas C. oil D. wood
25. Where are deposits of natural gas found?
A. on top of underground water B. on top of petroleum deposits
C. on top of the soil D. on top of peat bogs
26. About half the electricity used in the US is generated by__?
A. coal B. hydroelectric C. oil D. nuclear fission
27. When plant and animal remains are covered in swamps, _____ is the fossil fuel that is made.
A. natural gas B. coal C. petroleum D. octane
28. When plant and animal remains are covered in the ocean, _____ is the fossil fuel that is made.
A. natural gas B. coal C. petroleum D. octane
29. Which fossil fuel produces the lowest levels of most air pollutants?
A. coal B. petroleum C. natural gas D. nuclear
30. Fossil fuels are rich in energy because they contain…
A. fossil fragments B. heat C. electricity D. hydrocarbons
31. The greatest environmental threat from using fossil fuels is…?
A. global warming B. explosions C. availability D. accidents
32. Fossil fuels are considered non-renewable resources because they…
A. burn so quickly B. pollute the air C. take millions of years to form D. are in high demand
33. What fossil fuel is predicted to last the longest (the most plentiful)?
A. natural gas B. coal C. petroleum D. crude oil
34. Potential energy is energy ___.
A. in movement B. in materials C. chemicals D. that could happen
35. Kinetic energy is energy___.
A. in movement B. in materials C. chemicals D. that could happen
36. Energy source that can be replaced as quickly as it is used.
A. renewable B. inexhaustible C. material D. kinetic
37. Energy source that can never be used up.
A. renewable B. inexhaustible C. material D. kinetic
38. Sometimes a renewable resource can be considered nonrenewable. Which of the following an example?
A. using coal to make electricty C. Hydroelectric on a river
B. using solar to heat a house D. logging and not replanting
39. A material resource is used to make objects, food or drink. Which is an example?
A. throwing wood out C. changing wood into paper
B. burning wood D. tress are replanted
40. List and explain examples of how energy can be changed (converted) into useable forms.
Example Changes what to what
___Eating food______chemical in food to kinetic in body movement______
______
______
41. 92. Boiling water on a campfire uses ___.
A. hydropower B. geothermal energy C. biomass energy D. solar energy
42. The fuel most commonly used in fission reactions is _____.
A. uranium B. cadmium C. plutonium D. neptunium
43. The control rods in a nuclear reactor are made of _____.
A. uranium B. cadmium C. plutonium D. neptunium
44. Exposure to even small amounts of radiation can lead to _____.
A. DNA changes B. blindness C. emphysema D. asthma
45. The fuel (Uranium) used in Nuclear Power plants is used faster than nature can replace it. Nuclear energy is
considered a ___ energy source.
A. nonrenewable B. renewable C. natural D. potential
46. Which of the following are not Pros to nuclear power?
A. cheap B. clean C. lots of energy D. nuclear waste
47. The energy released when nuclei of atoms are split or combine.
A. nuclear B. radiation C. nonrenewable D. renewable
48. The result of two atomic nuclei joining to form one large nucleus is?
A. fission B. radiation C. fusion D. nuclear
49. Chain reactions occur as the result of the continuous release of _____ from splitting nuclei.
A. protons B. ions C. electrons D. neutrons
50. That there are many technical difficulties to solve before it becomes practical is a problem with
nuclear…?
A. fission B. radiation C. fusion D. isotopes
51. Neutrons are continuously released from Uranium-235 in a process called a _____ reaction.
A. breeder B. fusion C. chain D. nuclei
52. Which type of waste may be the greatest hazard related to nuclear power because they are abundant?
A. low level B. medium level C. high level D. extreme level
53. What kind of energy does the chemical energy in the food you eat convert to when you are playing soccer?
A. thermal B. kinetic C. mechanical D. chemical
54. What is the greatest source of radiation exposure in the US?
A. reactor waste B. hospital waste C. radon D. reactor spills
55. The splitting of an atom’s nucleus into two smaller nuclei is called?
A. chain B. breeder C. fission D. fusion
56. What do you want to do with the control rods if you want to slow down a nuclear reaction?
A. lower them B. raise them C. burn them D. water them
57. Name the power plant where the valve on a coolant pipe stuck and almost caused a meltdown.
A. Fukushima B. Susquehanna C. Three Mile Island D. Chernobyl
58. Name the power plant where the control rods caught on fire and caused an expolosion.
A. Fukushima B. Susquehanna C. Three Mile Island D. Chernobyl
59. Name the power plant that was hit by an earthquake followed by a tsunami.
A. Fukushima B. Susquehanna C. Three Mile Island D. Chernobyl
60. Can nuclear power plants explode like a nuclear bomb?
A. Never! B. Absolutely! C. possibly… D. ummmm…
61. In a nuclear power plant, what is used to change water into steam?
A. heat from buring natural gas B. heat from geothermal energy
C. heat from solar energy D. heat from nuclear fission
62. Which of the following is true of nuclear fusion?
A. it produces much less energy per atom than fission
B. It takes very little energy to control fusion
C. Fusion does not require either tremendous pressure or heat
D. It can produce much more energy than fission
63. Nuclear reactions result in tremendous amounts of?
A. uranium B. energy C. fission D. mass
Use the following diagram to answer questions #64 to #70.
64. Part A is made of…
A. steam B. uranium C. hydrogen D. cadmium
65. Part B is made of …
A. steam B. uranium C. hydrogen D. cadmium
66. Part F contains…
A. steam B. uranium C. hydrogen D. cadmium
67. Which part is the fuel source for the reactor?
A. A B. B C. C D. D E. E
68. Which part controls the rate of reaction?
A. A B. B C. C D. D E. E
69. In which section of the nuclear reactor does nuclear fission occur?
A. A B. B C. C D. D E. E
70. What is the name of the part in # 69? ______
71. Which of these is an example of biomass fuel?
A. oil B. natural gas C. wood D. coal
72. What energy uses water heated by magma beneath the Earth’s surface to make electricity?
A. hydrogen power B. tidal C. geothermal D. solar
73. Which of the following is an advantage of solar energy?
A. not run out for billions of years B. not available at night
C. backup energy sources are needed D. must be collected from a huge area
74. Ozone protects the earth by…
A. making heat B. making water vapor C. changes oxygen D. reflects UV rays
75. Wind and hydroelectric power are actually an indirect form of
A. electricity B. magnetic energy C. solar energy D. nuclear energy
76. Which converts light from the sun into thermal (heat) energy and distributes the heat using pumps?
A. active solar B. passive solar C. solar plant D. solar cell (PV cell)
77. The type of windmill that converts wind energy to electric energy is a …?
A. windmill B. wind wheel C. aerogenerator D. wind generator
78. What is the main plant used for ethanol production?
A. corn B. wheat C. barley D. rice
79. Which windmill turns on a vertical axis? It can also turn at lower wind speeds.
A. Darrieus rotor B. aero rotor C. aerogenerator D. Krempa rotor
80. What is the production of energy from moving water called?
A. geothermal energy B. hydroelectric power C. wind energy D. bioconversion
81. What do photovoltaic cells convert the energy from the sun into?
A. heat B. fuel C. light D. electricity
82. Which is NOT an example of alternative energy?
A. biomass B. geothermal energy C. fossil fuels D. hydroelectric energy
83. What is ethanol?
A. a plant B. alcohol C. fermentation D. bioconversion
84. Which of the following does NOT involve the energy from the sun?
A. geothermal energy B. solar energy C. wind energy D. hydroelectric energy
85. What would be an example of indirect solar energy use?
A. water power B. solar heaters C. photovoltaic cells D. solar collectors
86. Light energy from the sun is converted by plants into …?
A. mechanical energy B. electricity C. natural gas D. chemical energy
87. During photosynthesis, plants change sunlight into “food”. The plants make…
A. soil B. sugar C. ozone D. nitrogen
88. Which of the following is NOT a problem associated with hydroelectric power?
A. flooded land above the dam B. change in river flow
C. electrical power generation D. fish migration disruption
89. Put the steps for generating electricity (in general) in the proper order.
A. electricity, turbine, generator, energy source
B. energy source, electricity, generator, turbine
C. energy source, turbine, generator, electricity
D. electricity, energy source, generator, turbine
90. What causes the wind to blow?
A. the wind moving C. uneven heating of the Earth
B. uneven heating of the air D. uneven heating of the water