Unit D: Electrical Principles and Technologies

Using the heat of the Earth’s interior, you can heat your home with a ground source heat pump. This kind of heating is cheaper and better for the environment!

The telegraph works by transmitting signals through an electrical circuit. Learn more and print your own telegraph key using this 3d model of a real artefact.

In a few decades, some of the electricity you use might be generated by bacteria.

How do magnetic fields help you get down safely from the top of a drop tower ride? Learn how electromagnetic induction works at the amusement park.

Learn how moving water can be used to generate electricity. This is called hydroelectric power generation.

Put on your running shoes and sharpen your pencil! Investigate the mathematical connection between work and power in this hands-on activity.

Hydrogen’s tendency towards combustion is what makes it both a dangerous chemical element and a useful energy source.

Have you ever experienced static electricity? Like when you pull a wool sweater over your head in the winter? See what else static electricity can do in this hands-on activity.

Try your hand at building a “super coaster” using materials around your home.

This resource explains electricity basics - volts, amps, currents, resistance, and why it is dangerous to touch electrical outlets with wet hands.

Sometimes, power plants make too much electricity. Energy storage technologies can help! They store the extra electricity and release it when demand goes up.

Learn about the electrochemistry in the batteries that power many of the devices you use every day.