Physics: Principles and Problems
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Chapter 22: Current Electricity
What Is an Electric Vehicle?
This site is maintained by the Electric Auto Association, a consumer group that educates people on the benefits of electric vehicles. Visit this site and compare electric cars to gasoline-powered cars.

Hoover Dam: The Virtual Tour
Take a virtual tour through the Hoover Dam. Find out what the dam's primary function is. (HINT: It's not the generation of electricity.)

Introduction of Photovoltaic Physics
Visit this discussion of photovoltaic cells. Find out, in photovoltaic lingo, what a "hole" is.

Home Theater: What the Future Holds
This PBS site offers a quick explanation of high-definition television, including a discussion of other telecommunication advances like digital video disks and Web TV. How do you think these advances are going to change the way you watch television and movies?


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Physics: Principles and Problems