Chapter 18 Test/ Final Exam

Renewable energy is energy from sources that

• are constantly being formed
• will take years to deplete
• humans can manufacture
• were once living organisms

Compared to washing clothes in warm water, washing clothes in cold water uses

• much more energy
• the same amount of energy
• much less energy
• a little more energy

The percentage of energy put into a system that does useful work is

• energy conservation
• renewable energy
• energy efficiency
• energy conversion

One disadvantage of wind energy is that

• wind turbines are not cost effective
• large amounts of farmland are needed for turbines
• transmitting electricity from wind turbines across long distances is difficult
• wind turbines generate large amounts of energy

Which of the following is an example of passive solar heating?

• using solar panels to power outdoor lighting
• energy from sun heats water inside solar collectors
• accidentally grilling your foot on a solar powered George Forman Grill
• south facing windows letting in sunlight during the winter

________ convert the sun's energy into electricity.

• photovoltaic cells
• plants
• hydroelectric dams
• aliens

Which of the following is a disadvantage of solar power?

• causes erosion
• expensive
• kills birds
• causes pollution

Which of the following is NOT an advantage of wind energy?

• inexpensive
• clean
• takes up little space
• no moving parts

________ consists of plant material, manure, or any other organic matter that is used as an energy source.

• biomass fuel
• fuel cells
• fossil fuels
• hydroelectricity

________ is electricity produced in a small stream without having to build a big dam.

• geothermal power
• micro-hydopower
• hydroelectricity
• photovoltaic cells