Ch. 13 Energy Resources Study Guide

1.) List and explain the 3 ways heat is transferred. Conduction- Heat transferred from one object to another by touch Convection- Heat transferred from one object to another by the air or a fluid Radiation- Heat transfer from the sun to an object by waves

2.) How is mechanical energy converted into heat? Water is heated to produce steam When the water boils it increases pressure Pressure causes a turbine to spin The turbine spinning generates electricity

3.) What energy resources are used to generate electricity in the United States? List at least 3. Fossil fuels Hydroelectric Nuclear Geothermal Wind

4.) What are the major energy sources used to produce electricity in Washington? Hydroelectric Nuclear Wind

5.) What is the difference between electric power and electric energy? watt Watt-hour Electric Power Electric Energy Amount of work electricity can do Rate electricity does work

6.) How is electric power generated? Steam turbines Burning Fossil Fuels- boiler Nuclear Energy- reactor Hydroelectric Power- flowing water

7. ) Draw and label a picture of the pH scale 7.) Draw and label a picture of the pH scale. Include: acid, base, neutral, numbers, colors. acid NEUTRAL base

8.) Use a double bubble map to compare and contrast acids and bases. 0-6.9 8-14 red blue Acid pH scale Base H+ OH - If too strong, bad for the environment

9.) What are the environmental impacts of using coal? Burning coal increases CO2 ,NO2 ,and SO2in the air Large amounts of these gases in the air leads to acid rain Acid rain leads to changing the pH of the environment: soil, water Kills fish, insects, plants, plankton

Large number of coal-fueled electric power plants 10.) Why is acid raid more harmful in the eastern United States than in other parts of the US? Large number of coal-fueled electric power plants Wind blows pollution to the east bringing the acids where large amounts of rain occurs Type of rock and soil Mostly granite so soil doesn’t neutralize the acid rain

11.) What are the positive and negative effects of energy use on communities? Air quality Acid rain Global warming Ground-water contamination Maintain a high quality of life Provide employment

12.) Do you think our society has a big or small dependence on petroleum? Explain. Very big we consume 18,311,000 barrels of petroleum per day Has had the greatest impact of any other fuel No source of energy has ever become so dominant

We consume more and more each year 13.) Think back to the graphs you made about US and foreign oil, what is happening to the amount we use each year? We consume more and more each year

14.) How can the use of sun and wind reduce the use of nonrenewable energy resources? If the use of wind and solar energy increases then the demand for fossil fuels will decrease. The cost for wind power is competitive with the price of power produced by coal-fired plants It is predicted that as of 2005 it will cost less for wind-energy than coal-energy

15.) How does solar heating work? Solar energy is collected in a box with a black back Pipes run under the back and water is warmed in the pipes and then stored in a tank

16.) Could wind energy be used in Washington? Why or why not?

17. ) Compare and contrast any 2 energy resources that were presented 17.) Compare and contrast any 2 energy resources that were presented. Include: pros and cons, renewable/nonrenewable, future use, statistics, environmental impacts. On your own.