Chapter 18 Study Guide 2

11. Wind, moving water, sunlight, and heat from Earth’s interior are sources of

• a. alternative energy.

• b. geothermal energy.

• c. renewable energy.

• d. ocean thermal energy

12. Which of the following uses solar collectors to heat water?

• a. passive solar heating

• b. active solar heating

• c. photovoltaic cells

• d. all of the above

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13. Which of the following is the fastest-growing source of energy in the world?

• a. passive solar heating

• b. photovoltaic cells

• c. fuel cells

• d. wind power

14. Which of the following is a major source of biomass fuel in developing countries?

• a. wood

• b. dung

• c. corn

• d. both (a) and (b)

15. A geothermal power plant gets energy by

• a. pumping heated water or steam from rock formations.

• b. circulating fluid underground.

• c. holding water behind a dam..

• d. using methane from decomposition.

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16. Tidal power, hydrogen fuel cells, and ocean thermal energy conversion are sources of

• a. alternative energy.

• b. geothermal energy.

• c. nonrenewable energy.

• d. hydroelectric energy.

17. Which of the following descriptions of hybrid cars is correct?

• a. Hybrid cars do not use gasoline engines.

• b. Hybrid cars have not been made yet.

• c. Hybrid cars are energy-efficient.

• d. Hybrid cars rely on biomass fuel.

18. Which of the following statements about hydrogen as a fuel source is correct?

• a. The amount of hydrogen on Earth is too small to meet our fuel needs.

• b. Hydrogen can be burned as a fuel or used to produce electricity chemically.

• c. When hydrogen is burned, it releases pollutants.

• d. Generating hydrogen by burning fossil fuels is inexpensive.

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19. Sunlight falls on a semiconductor, causing it to release electrons, in a

• a. photovoltaic cell.

• b. fuel cell.

• c. battery.

• d. solar collector.

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20. People can conserve energy in their daily lives by driving a vehicle

• a. mostly for short distances.

• b. instead of taking a bus or train.

• c. with a large gas tank.

• d. that is fuel-efficient.

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