module39REVIEW

In this module, we have seen that the Sun and wind provide viable sources of renewable energy in many locations. Solar energy can be used both passively, such as locating a building in a particular direction, as well as actively, such as using photovoltaic cells. Wind energy is harnessed through the use of a wind turbine, which converts the energy of moving air into electricity. Wind is the fastest growing form of new electricity generation in the world. Harnessing geothermal energy also is a good source of energy in certain locations. Hydrogen has great potential that has not yet been realized. We can use all of these energy forms in appropriate locations under the proper circumstances, which is the focus of the next module.

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Module 39 AP® Review Questions

Question 1

1. Which is an application of passive solar technology?

  1. Concentrating solar thermal

  2. Photovoltaic cells

  3. Heat pumps

  4. Solar water heating

  5. Solar ovens

Question 2

2. On average, what percentage of time does a land-based wind turbine generate electricity?

  1. 70 percent

  2. 60 percent

  3. 45 percent

  4. 30 percent

  5. 25 percent

Question 3

3. All of the following are true about geothermal energy except

  1. it is only available in limited areas.

  2. it cannot be used for cooling.

  3. it can be locally depleted due to heavy use.

  4. ground source heat pumps require an additional source of energy.

  5. there is a risk of hazardous gas release.

Question 4

4. A hydrogen fuel cell is most similar to

  1. an engine.

  2. a photovoltaic cell.

  3. a source of coal.

  4. a battery.

  5. a ground source heat pump.

Question 5

5. Which is NOT a benefit of solar energy systems?

  1. They typically produce electricity during peak demand.

  2. They require very little maintenance.

  3. They produce electricity cheaply.

  4. They do not produce pollution while generating electricity.

  5. They can easily be used for small-scale applications.