National High Magnetic Field Laboratory
Magnet Academy: Heat Resistance
Heating a metal conductor makes it more difficult for electricity to flow through it. See why in this tutorial. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Magnetometer 1832
The Earth, the moon, the stars and just about everything in between has a magnetic field, and scientists use magnetometers when they need to know the strength of those fields.
Sophia Learning
Sophia: Electric Circuits: Lesson 2
This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 2 of 4 in the series titled "Electric Circuits."
Sophia Learning
Sophia: Electric Circuits: Lesson 4
This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 4 of 4 in the series titled "Electric Circuits."
Science4Fun
Science4 Fun: How Electricity Is Made
Read this brief article to gain an understanding of the principle of electromagnetism, how electricity is generated, and the problem with fossil fuels.
Other
Ithaca Hs Ny/electrical Generator Ac or Dc/applet
What a lovely little applet! You can speed/slow it, change it from AC to DC, plot the voltage as it rotates, change direction, control other information. Real neat.
Physics4kids
Physics4 Kids: Electricity and Magnetism: Current
Explains electric current, how it produces heat, and the difference between a direct current and an alternating current.
TeachEngineering
Teach Engineering: Two Sides of One Force
Students learn more about magnetism, and how magnetism and electricity are related in electromagnets. They learn the fundamentals about how simple electric motors and electromagnets work. Students also learn about hybrid...
Wikimedia
Wikipedia: Electromagnet
Easy-to-read information and an illustration of an "electromagnet," a type of magnet in which the magnetic field is induced by the flow of an electric current.
National High Magnetic Field Laboratory
Magnet Academy: Magneto 1832
The magneto helped fire up the first generation of automobiles.
Exploratorium
Exploratorium: Science Snacks: Motor Effect
"A magnet exerts a force on current-carrying wire." This simple device shows how magnets affect wires with current in them, the basis of the electric motor. If you see, feel and understand this, the electric motor becomes very clear.
Concord Consortium
Concord Consortium: Stem Resources: How Electrons Move
A collection of interactive activities and games to explore how electric fields and magnetic fields move electrons and charged particles in directions that can be planned. Understand that knowing how to control the movement of electrons...
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Charge Trajectories
Investigate a the forces exerted on a charged particle by electric and magnetic fields. Initially, find out how the charge behaves in an electric field. Then, see how the charge behaves in a magnetic field. Finally, initiate both fields...
National High Magnetic Field Laboratory
Magnet Academy: Kettle 1891
Found in more homes than any other appliance, the kettle has steadily evolved from an ancient tool to an important modern convenience.
National High Magnetic Field Laboratory
Magnet Academy: Hydroelectric Power Station 1882
The first hydroelectric power plant, known as the Vulcan Street Plant, was powered by the Fox River in Appleton, Wisconsin.
National High Magnetic Field Laboratory
Magnet Academy: The Tesla Coil
What's behind the cool purple sparks? Neat science about resonance and transformers. Slideshow: [6:00]
Physics Aviary
Physics Aviary: Practice Problems: Mass and Speed of a Particle
Determine the mass and speed of a particle being fired through variable magnetic and electric fields. This problem is done after students determine the charge of an electron using the Millikan Oil Drop Experiment.
University of St. Andrews (UK)
University of St. Andrews: James Clerk Maxwell
Research resources for James Maxwell (1831-1879), who did revolutionary work on electricity and magnetism and on the kinetic theory of gases.
Science Museum, London
Science Museum: Pocket Motor
Teacher directed activity shows students how flowing electrical current produces a magnetic field by building a simple motor.
Wikimedia
Wikipedia: Charles Augustin De Coulomb
Spanish-language site lets students discover the life and work of this physicist and engineer, who is known for his studies of electric charges.
National High Magnetic Field Laboratory
Magnet Academy: Guitar Pickup
Keith Richards and Eric Clapton owe their fame and fortune (in part) to electromagnetic induction. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Audion
In 1906, American physicist Lee De Forest invented the Audion (or triode), building on John Fleming's discovery of the diode just a few years before.
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.
TeachEngineering
Teach Engineering: Get Your Motor Running
Students investigate motors and electromagnets as they construct their own simple electric motors using batteries, magnets, paper clips and wire.
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