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.
Other
Science Playwiths: Electricity and Magnet Playwiths
A relatively easy set of instructions for building a Leyden jar, and an easy-to-understand explanation of how it works.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Introduction to Magnets (Classroom Unit)
A teacher unit which includes several hands-on activities about types of magnets, magnetism, and electrostatics. An activity designed to suit all grade levels. Many parts of the activity would be easily adaptable as a student project.
Curated OER
Physics4 kids.com: Electricity & Magnetism: Resistance
Simple line graph showing the inverse relationship between the amount of electrical resistance and the amount of work possible.
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.
National High Magnetic Field Laboratory
Magnet Academy: Arc Lamp 1876
Fire lighted the night for many centuries. Then came Sir Humphry Davy and the birth of the arc lamp, an invention built upon in the years that followed by many.
Massachusetts Institute of Technology
Mit: Open Course Ware: Supplemental Resources: Continuum Electromechanics
College-level electrical engineering and computer science textbook highlighting the applications of continuum electromechanics.
Physics Aviary
Physics Aviary: Thomson's Cathode Ray Tube Lab
This lab is designed to have students look at the deflection of a cathode ray beam using magnetic fields and electric fields.
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.
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: 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.
Discovery Education
Discovery Education: Build Your Own Perpetual Motion Machine [Pdf]
A lesson for learners to explore the conversion of energy from electrical energy to kinetic energy by constructing a homopolar motor. Also by constructing the motor, students can investigate magnetism, electricity, and RPM.
National High Magnetic Field Laboratory
Magnet Academy: Torsion Balance
Experiment with the torsion balance and see what happens first by giving the rod a charge, and then by moving the charged rod closer to the outer metal sphere of the instrument. Observe what happens to the needle as the charge increases.
National High Magnetic Field Laboratory
Magnet Academy: Apple Ii Plus 1979
Long before the iPhone, the iPod or even the Mac, there was the Apple.
National High Magnetic Field Laboratory
Magnet Academy: Early Chinese Compass 400 Bc
The first compass was used not to point people in the right direction literally, but figuratively.
National High Magnetic Field Laboratory
Magnet Academy: Edison Battery 1903
Although it never quite measured up to expectations, the Edison battery paved the way for the modern alkaline battery.
National High Magnetic Field Laboratory
Magnet Academy: Fluorescent Lamp 1934
Compared to incandescent lamps, fluorescent lamps last longer, require less energy and produce less heat, advantages resulting from the different way in which they generate light.
National High Magnetic Field Laboratory
Magnet Academy: Electrostatic Generator 1706
Otto von Guericke's electrostatic machine evolved into increasingly improved instruments in the hands of later scientists. In the early 1700s, an Englishman named Francis Hauksbee designed his own electrostatic generator, a feat stemming...