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.

With this interactive students will build circuits with capacitors, inductors, resistors and AC or DC voltage sources, and inspect them using lab instruments such as voltmeters and ammeters. Students will observe and discuss electricity relationships between different circuit types, the resistance of common objects, and how capacitors and inductors function with circuits.

Build circuits with capacitors, inductors, resistors and AC or DC voltage sources, and inspect them using lab instruments such as voltmeters and ammeters.

An electronics kit in your computer! Build circuits with resistors, light bulbs, batteries, and switches. Take measurements with the realistic ammeter and voltmeter. View the circuit as a schematic diagram, or switch to a life-like view. Java required.

Build circuits with resistors, light bulbs, batteries, and switches and take measurements with laboratory equipment like the realistic ammeter and voltmeter.

An interactive air hockey simulation that teaches about collisions, momentum, and velocity. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional materials.

Make a whole rainbow by mixing red, green, and blue light. Change the wavelength of a monochromatic beam or filter white light. View the light as a solid beam, or see the individual photons.

An interactive simulation that teaches about photons, monochromatic light, white light, and rainbows through changing wavelengths, beams, filters, and color combinations. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional materials.

Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals and find out how concentrated you can go before you hit saturation!

Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them. Java required.

Explore tunneling splitting in double well potentials. This classic problem describes many physical systems, including covalent bonds, Josephson junctions, and two-state systems such as spin 1/2 particles and ammonia molecules. Java required.

Drag data points and their error bars, and watch the best-fit polynomial curve update instantly. Choose the type of fit: linear, quadratic, cubic, or quartic. The reduced chi-square statistic shows when the fit is good.

Simulate the original experiment that proved that electrons can behave as waves. Watch electrons diffract off a crystal of atoms, interfering with themselves to create peaks and troughs of probability. Java required.

An interactive simulation that teaches about density, mass, and volume through explorations of mass and volume with different objects. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional materials.

Interactive animated simulation allows students to make connections between the real world and the physical world. Uses interactive tools to explore issues such as calories, exercise, diet, fitness, and weight control.

How many calories are in your favorite foods? How much exercise would you have to do to burn off these calories? What is the relationship between calories and weight? Explore these issues by choosing diet and exercise and keeping an eye on your weight.

Play ball! Add charges to the Field of Dreams and see how they react to the electric field. Turn on a background electric field and adjust the direction and magnitude. (Kevin Costner not included). Java required.

Play hockey with electric charges. Place charges on the ice, then hit start to try to get the puck in the goal. View the electric field. Trace the puck's motion. Make the game harder by placing walls in front of the goal. This is a clone of the popular simulation of the same name marketed by Physics Academic Software and written by Prof. Ruth Chabay of the Dept of Physics at North Carolina State University. Java required.

Explore how heating and cooling iron, brick, and water adds or removes energy. See how energy is transferred between objects. Build your own system, with energy sources, changers, and users. Track and visualize how energy flows and changes through your system. Java required.