18.2 Section: Alternative Energy and Conservation MATCHING: Write the letter of the term or phrase that best matches the numbered description. energy conservation d. alternative energy a. ocean thermal energy conversion e. fuel cell b. (OTEC) energy efficiency c. ______ produces electricity chemically 31. ______ 32. energy sources that are still in development ______33. includes lifestyle changes ______ 34. produces electricity using the temperature difference between two layers of water ______35. percentage of energy that does useful work MULTIPLE CHOICE: In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. ______ 36. A hybrid car uses an efficient gasoline engine and an electric motor. a. an efficient gasoline engine and a fuel cell. b. a fuel cell and a solar cell. c. a photovoltaic cell and an electric motor. d. ______37. Compared to washing clothes in warm water, washing clothes in cold water uses much more energy. much less energy. a. c. the same amount of energy. a little more energy. b. d. ______38. Hydrogen could be used as a fuel source in the future because it is abundant. is used in fuel cells. a. c. can be burned as fuel. All of the above b. d. ______ 39. OTEC works because water boils at low temperatures when in a high-pressure chamber. a. b. cooled in a vacuum chamber. under low pressure in a vacuum chamber. c. pumped from the ocean. d. ______40. Which of the following is an example of cogeneration? driving a fuel-efficient car a. using the waste heat from a furnace to power a steam turbine b. using ocean thermal energy conversion to run a turbine c.
18.2 Section: Alternative Energy and Conservation MATCHING: Write the letter of the term or phrase that best matches the numbered description. a. alternative energy b. fuel cell c. energy efficiency d. energy conservation e. ocean thermal energy conversion (OTEC) ______ 31. produces electricity chemically ______ 32. energy sources that are still in development ______33. includes lifestyle changes ______ 34. produces electricity using the temperature difference between two layers of water ______35. percentage of energy that does useful work MULTIPLE CHOICE: In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. ______ 36. A hybrid car uses a. an efficient gasoline engine and an electric motor. b. an efficient gasoline engine and a fuel cell. c. a fuel cell and a solar cell. d. a photovoltaic cell and an electric motor. ______37. Compared to washing clothes in warm water, washing clothes in cold water uses a. much more energy. c. much less energy. b. the same amount of energy. d. a little more energy. ______38. Hydrogen could be used as a fuel source in the future because it a. is abundant. c. is used in fuel cells. b. can be burned as fuel. d. All of the above ______ 39. OTEC works because water boils at low temperatures when a. in a high-pressure chamber. b. cooled in a vacuum chamber. c. under low pressure in a vacuum chamber. d. pumped from the ocean. ______40. Which of the following is an example of cogeneration? a. driving a fuel-efficient car b. using the waste heat from a furnace to power a steam turbine c. using ocean thermal energy conversion to run a turbine
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