Creative Science Centre
Creative Science Centre: Two Low Power Led Flashers
Explains the design of two circuits that can flash an LED from a single 1.5V battery. A typical LED needs 2-3V to work properly and both these circuits include a voltage doubler to boost the voltage to drive the LED. Both circuits will...
Wikimedia
Wikipedia: Series and Parallel Circuits
Wikipedia offers information on two basic ways of wiring components in electrical circuits, series and parallel circuits.
Open Curriculum
Open Curriculum: Capacitance and Inductance
Students learn about capacitors and inductors and their role in electrical circuits.
University of Virginia
Uva Virtual Lab: Circuit Components and Symbols
Know the terms of circuit parts as well as their symbols when studying circuits. Scroll over the vocabulary. Some terms will have animations as well.
Channel 4 Learning
4 L: Science Essentials: Get Physical
Find a review of many aspects of the physical world. Simple explanations of electricity, gravity, and the solar system. Included are materials for teachers to use for enrichment.
National High Magnetic Field Laboratory
Magnet Academy: Bullet Speed
This tutorial takes a shot at explaining how circuits can be used to measure things beyond the capacity of human senses.
National High Magnetic Field Laboratory
Magnet Academy: Transformers
Use this interactive, simple transformer to make a complete circuit via induction using two separate coils with iron cores inside.
Careers New Zealand
Career Nz: Electrician
This site contains information about becoming an Electrician in New Zealand. While some of the information is specific to New Zealand, there is also data that is uniform to the career.
Read Works
Read Works: Electricity & Energy Circuits
[Free Registration/Login Required] An informational text about electric circuits. A question sheet is available to help students build skills in reading comprehension.
TryEngineering
Try Engineering: Radio Reception and Transmission
Teams of learners learn about the engineering design process as they design, build, and test a radio receiver and optional transmitter that can receive FM broadcasts. Lesson focuses on how advances in radio communications have impacted...
Exploratorium
Exploratorium: The Tinkering Studio: Circuit Boards
Some history behind the function of the circuit board, with a guided activity guide for students to download.
Physics Classroom
The Physics Classroom: Electric Circuits: Circuit Builder
Students manipulate this virtual electronic circuit board where they can add resistors, light bulbs, wires, and ammeters to build a circuit, explore Ohm's law, and compare and contrast series, parallel, and combination circuits. Three...
Physics Aviary
Physics Aviary: Rc in Ac Lab
This lab was designed to help students understand the difference between circuits powered by DC and circuits powered by AC. Students can see that simple changes in frequency lead to changes in the potential difference across the...
Physics Classroom
The Physics Classroom: Requirements of a Circuit
What four arrangements would result in the successful lighting of a lightbulb? And more importantly, what does each of the four arrangements have in common that would lead to an understanding of the two requirements of an electric...
Concord Consortium
Concord Consortium: Measuring Phase in Ac Circuits
See how oscillations in an AC circuit don't always rise and fall together.
Concord Consortium
Concord Consortium: Dc Circuits: Parallel Resistances (Sparks 2)
Explore circuits with resistors in parallel and answer questions regarding voltage drops across resistors and currents through them in such circuits.
Other
Mega Mathematics: Graphs and Graph Theory
Contains a clear explanation of the basic terminology of graph theory. The useful for a first introduction to graphs and graph theory.
CK-12 Foundation
Ck 12: Algebra: Determining Asymptotes by Division
[Free Registration/Login may be required to access all resource tools.] Solve circuitry problems that involve rational functions.
CK-12 Foundation
Ck 12: Physics Simulation: Dollhouse
[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]
CK-12 Foundation
Ck 12: Physics Simulation: Marquee Lights
[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...
South Carolina Educational Television
Etv: Circuits
This colorful site will help you understand series and parallel circuits.
South Carolina Educational Television
Know It All: Understanding Electricity | Nasa Online
If you want to understand electricity, you first need to know a little about matter, atoms and electrons.
Khan Academy
Khan Academy: Characteristics of Circuit Diagrams
Practice identifying the direction of current flow, closed circuits, and open circuits with this multiple choice quiz.
Khan Academy
Khan Academy: Neuronal Membranes: Nature's Capacitors
Practice questions related to circuits and capacitors.