Quiz 18.2

MATCHING - Write the letter of the term or phrase that best matches the numbered description.

______ 1. produces electricity chemically

______ 2. energy sources that are still in development

______ 3. includes lifestyle changes

______ 4. produces electricity using the temperature difference between two layers of water

______ 5. percentage of energy that does useful work

a. energy efficiency

b. ocean thermal energy conversion

c. energy conservation

d. alternative energy

e. fuel cell

MULTIPLE CHOICE - In the space provided, write the letter of the answer that best completes each statement or best answers each question.

______ 6. 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.

______ 7. 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.

______ 8. 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

______ 9. 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.

______10. 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

d. using tidal power to generate electricity