Chapter 17: Electrical Energy and Current

Electric Potential

This introduction to electric potential energy includes links to more information.

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elepe.html

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elepe.html

This article and video describe new technology being developed in the area of biofuel cells, which use glucose and oxygen in the human body to generate electricity.

http://www.bbc.co.uk/news/technology-15305579

http://www.bbc.co.uk/news/technology-15305579

Capacitance

This applet allows the user to see how a capacitor works.

http://phet.colorado.edu/en/simulation/capacitor-lab

How lightning functions as a gigantic natural capacitor.

http://micro.magnet.fsu.edu/electromag/java/lightning/index.html

This article discusses the use of graphene to build smaller, faster “supercapacitors.”

http://physicsworld.com/cws/article/news/43828

Ohm’s Law

This resource sheet provides information about how astronauts’ spacesuits act as “personal spacecraft.” It includes an activity that has students apply Ohm’s law.

http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Spacesuits_Pressurized_Protection.html

http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Spacesuits_Pressurized_Protection.html

This simulation applies Ohm’s law to a simple circuit.

http://phet.colorado.edu/en/simulation/ohms-law

Electric Power

With five cents — and a bit extra for materials — you can build an LED flashlight battery.

http://science.kqed.org/quest/video/quest-lab-five-cent-battery/

How NASA’s Glenn Research Center contributes to the electrical power system aboard the International Space Station.

http://www.nasa.gov/centers/glenn/about/fs06grc.html

http://www.nasa.gov/centers/glenn/about/fs06grc.html

Use the information on this website to estimate how much energy your household consumes in a typical year.

http://www.energysavers.gov/your_home/appliances/index.cfm/mytopic=10040