FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 21: New Renewable Energy Alternatives

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 21

Essay

Review LaterAdd Note

Review Later

Discuss the advantages and disadvantages of wind power.

Correct Answer

verified

Advantages: Wind produces no emissions o...

View Answer

Show Answer

Question 22

Multiple Choice

Review LaterAdd Note

Review Later

Passive solar technologies ___________

A) use the energy of sunlight without relying on electrical or mechanical devices
B) use silicon wafers to generate light energy
C) use mirrors to concentrate the sun's rays on a tower or a series of pipes holding water
D) use photovoltaic cells to produce light energy
E) use mechanical devices to heat water and buildings or electrical devices to generate electricity

Correct Answer

verified

Show Answer

Question 23

Multiple Choice

Review LaterAdd Note

Although photovoltaic electricity as a power source is cleaner than burning fossil fuels, the problem with this electricity is that it ___________

Read the following scenario and answer the questions below. The oldest wind farm in Pennsylvania is Humboldt Industrial Park-the first commercial wind energy project in the mid -Atlantic region-which went online December 31, 1999. The two 65-kilowatt wind turbines were predicted to generate 200,000 kilowatt-hours of wind energy each year, replacing conventional electric generation that would otherwise produce 140 tons of carbon dioxide-the primary source of global climate change. Wind energy from these first two turbines also avoids the annual production of 800 pounds of nitrogen oxides and 1,900 pounds of sulfur dioxide. The local community in Luzerne County, Pennsylvania, had mixed reactions to the news that a new wind farm was being installed in 2005. Some were excited about the possibility of lower energy bills, some were concerned about the effects on the environment, and others wondered if there was enough local wind to make such an investment worthwhile. An average wind speed of 9 to 13 miles per hour is sufficient for most sizes of wind turbines. The power available in the wind is proportional to the cube of its speed, which means that doubling the wind speed increases the available power by a factor of eight. -If the wind speed averages 11 mph on Ashley Hill and 12 mph on Genevie Hill, then a turbine operating on Genevie Hill could, in theory, generate about ___________% more electricity than a turbine on Ashley Hill.

Read the following scenario and answer the questions below. The oldest wind farm in Pennsylvania is Humboldt Industrial Park-the first commercial wind energy project in the mid -Atlantic region-which went online December 31, 1999. The two 65-kilowatt wind turbines were predicted to generate 200,000 kilowatt-hours of wind energy each year, replacing conventional electric generation that would otherwise produce 140 tons of carbon dioxide-the primary source of global climate change. Wind energy from these first two turbines also avoids the annual production of 800 pounds of nitrogen oxides and 1,900 pounds of sulfur dioxide. The local community in Luzerne County, Pennsylvania, had mixed reactions to the news that a new wind farm was being installed in 2005. Some were excited about the possibility of lower energy bills, some were concerned about the effects on the environment, and others wondered if there was enough local wind to make such an investment worthwhile. An average wind speed of 9 to 13 miles per hour is sufficient for most sizes of wind turbines. The power available in the wind is proportional to the cube of its speed, which means that doubling the wind speed increases the available power by a factor of eight. -One difficulty with the process of using hydrogen as a power source is that it ___________

Wind will not be a major U.S. energy resource in ___________

Which one of the following is true of hydrogen fuel cell technology?

Read the following scenario and answer the questions below. The oldest wind farm in Pennsylvania is Humboldt Industrial Park-the first commercial wind energy project in the mid -Atlantic region-which went online December 31, 1999. The two 65-kilowatt wind turbines were predicted to generate 200,000 kilowatt-hours of wind energy each year, replacing conventional electric generation that would otherwise produce 140 tons of carbon dioxide-the primary source of global climate change. Wind energy from these first two turbines also avoids the annual production of 800 pounds of nitrogen oxides and 1,900 pounds of sulfur dioxide. The local community in Luzerne County, Pennsylvania, had mixed reactions to the news that a new wind farm was being installed in 2005. Some were excited about the possibility of lower energy bills, some were concerned about the effects on the environment, and others wondered if there was enough local wind to make such an investment worthwhile. An average wind speed of 9 to 13 miles per hour is sufficient for most sizes of wind turbines. The power available in the wind is proportional to the cube of its speed, which means that doubling the wind speed increases the available power by a factor of eight. -Nitrogen oxides and sulfur dioxide are the major ingredients ___________

Use the accompanying figure to answer the following questions. -For primary energy, the major renewable sources in the United States are ___________

Compared to the use of fossil fuels for generating electricity, wind energy ___________

What are some of the benefits and obstacles to using hydrogen as a fuel?

A potential energy source from oceans is ___________

An inexhaustible, nonpolluting, decentralized energy source

A method of converting sunlight to electrical energy

In general, what has spurred the use of renewable energy, and what are the benefits of its use in environmental and economic terms?

Currently, the fastest-growing source of electricity generation using new renewable sources is ___________

What is geothermal power? What are the advantages and disadvantages of the use of geothermal power?

A major obstacle to the establishment of wind farms near populated and scenic areas is ___________

The renewable energy source adopted in Iceland for use in vehicles

A major advantage of hydrogen-generated electricity over other new renewable energy sources is that it ___________