This tutorial illustrates why adding bulbs to a circuit makes all the bulbs dimmer.

[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about parallel circuit design, and how to calculate equivalent resistance from resistors in a parallel circuit.

[Free Registration/Login Required] Learn about the analysis of parallel circuits in the context of a realistic household circuit using our interactive simulation. A PDF worksheet and a video tutorial are also available. [3:24]

[Free Registration/Login Required] Learn about different ways you can wire an electric circuit, and how the brightness of the lights depends on how they are configured using this interactive simulation. A PDF worksheet and a video...

Play with resistors, light bulbs, wires, switches, a battery, voltmeters, and ammeters in this interactive circuit simulation.

This simulation shows a simple circuit consisting of an AC voltage source and, depending on the button selected, a resistor, a capacitor or a coil.

What is power? Illustrated discussion of power including how it is measured and electrical power.

This highly informative site contains many resources and articles on electricity. A wealth of information about electricity can be found. This site also contains many FAQ's.

A short summary of resistance and how it is measured. Including information on AC and DC.

Kid's learn more about the science of electricity. How its measured and generated.

Lenz's Law is defined and demonstrated with an interactive Java applet that shows the relationship between field lines of a magnetic and a conductor ring.

Take this 10 question multiple choice quiz on electricity and magnetism.

Informational fact sheet on electricity with emphasis on electric and magnetic fields.

A teacher lesson plan which could be easily converted into an idea for a student project or presentation. This page describes activities in which the interconversion of chemical and electrical energy are investigated. Complete activity...

[Free Registration/Login Required] A basic interactive lesson on Ohm's Law, I use this in my 9-12 CATE Electricity class.

This site provides a small definition of Kirchhoff's Second Law as well as illustrations & animations that show how this law works.

This new version of the CCK adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time. Java required.

Students use a simple set up consisting of a coil of wire and a magnet to visualize induced EMF. First, students move a coil of wire near a magnet and observe the voltage that results. They then experiment with moving the wire, magnet,...

Piezoelectric barbecue fire starters work by creating a spark that ignites the volatile lighter fluid, which then starts the charcoal burning. They are low current, high voltage devices. This project shows you a way to find out by with...

Simple homemade batteries are described that can be made from items found in the home or school lab. These experiments help students understand how to wire them up, the origin of current, voltage and power, as well as the chemistry that...

In this interactive simulation of Ohm's law, adapted from the University of Colorado's Physics Education Technology project, students will adjust the voltage and resistance in a circuit, and observe how this affects the flow of current....

Review the conservation of charge and how charge is transferred in various scenarios.

Provides a long list of physics formulas for easy reference.

Georg Simon Ohm had humble roots and struggled financially throughout most of his life, but the German physicist is well known today for his formulation of a law, termed Ohm's law, describing the mathematical relationship between...