US Department of Energy
Electric Avenue: Parallel and Series Circuits
Can you infer the wiring diagram of a series of lights based on their behavior alone? Scholars work with multiple boxes of four lights. They must flip the switch and decide how the lights are wired. By applying their knowledge of...
Trash For Teaching
The Light-House Project
Groups work together to design a lighthouse, from designing and drawing the wiring diagram, to creating prototypes of the switch and circuit, to envisioning and building a scale model along with a blueprint. By including different...
Rochester Institute of Technology
Electrical Energy
My friend told me how electricity is measured and I was like Watt! In the hands-on activity, learners explore electricity by building circuits, both parallel and series. They also determine how increasing the number of light bulbs and...
DiscoverE
The Power of Graphene
When you think electric circuits, your pencil probably isn't the thing that comes to mind. A simple experiment lets learners test whether the graphene in pencil lead is a conductor or an insulator. If the LED bulb lights up, a conductor...
Curated OER
How a Circuit Works
Students discover the basic principles of circuits by designing and testing some of their own. They are told that circuits usually have a power source such as a battery and a resistor such as a light. Students make a circuit using a...
Curated OER
AC Filtering With Capacitors
Students investigate the properties of capacitors and discover that capacitors block DC and filter AC. They discover the function of capacitors. Students differentiate between AC and DC power. They explore the role of resistors.
Rochester Institute of Technology
Artificial Hearing
Your sense of hearing depends upon tiny hairs deep inside your ear and if you lose these hairs, you lose your hearing. Here, groups explore hearing through the decibel measurement of common sounds. As a class, participants discuss...
DiscoverE
First You See It, Then You Hear It
Light and sound go hand in hand. Pupils set up a system that will emit sound when a laser is directed at a photodiode. Various objects, such as a comb and talcum powder, allow for modulation of the laser beam. Individuals also...
Curated OER
Semiconductors
Students investigate the properites of a semiconductor device known as a diode. They recognize a diode as a one way conducting device. They describe alternating current and the use of a diode to convert it to direct current. Students...