Curated OER
Take Charge!
Students induce an electrical charge on various objects, and experiment with electrical repulsion and attraction. They define related vocabulary, play Bingo and complete a take-home quiz.
Curated OER
Electromagnetic Induction
Students are introduced to the topic of electromagnetic induction. In groups, they describe ways in which the magnetic flux can change and discuss emf and current. They use different scientists laws and apply it to various scenerios in a...
US Department of Energy
The Ring Fling Machine
Class members build a machine to demonstrate Lenz's law and help this scientific principle come to life. After building a ring fling machine, instructions for properly operating the machine and a few thought-provoking questions lead to...
It's About Time
AC and DC Currents
An informative physics lesson includes two teacher demonstrations, one on AC currents and the other on DC currents, allowing pupils to take notes while watching. The resource includes questions to assign as homework or during class...
Curated OER
Intermediate Electromagnetism and Electromagnetic Induction
In this electrical circuit learning exercise, students answer a series of 24 open-ended questions about electromagnetism and electromagnetic induction. This learning exercise is printable and the answers are revealed online.
Curated OER
WiTricity Explained
Students explain how electricity is transferred from source to load without actual wires connecting the two. In this physics lesson, students explore how wireless electricity was discovered. They cite practical applications of this...
Curated OER
Faraday's Law of Induction
Students study Faraday's law of induction and the equations that show how to calculate electromagnetic induction. In this electromagnetic lesson students complete several experiments on the law of induction.
Curated OER
Transformers
Students examine how a transformer works and its practical applications. In this electricity activity students complete several experiments using transformers and generators.
Curated OER
Legacies of El Dorado
Students explore the development of urban California as it was driven by the Gold Rush boom. They study historical documents and participate in a variety of hands-on activities designed to reinforce the concept of the lesson.
Curated OER
Biomedical Imaging
Students use guided questions and research to compare two biomedical imaging methods. they effectively present their findings to the class. Students use new technical knowledge to summarize and compare new techniques with those they...
TeachEngineering
Teach Engineering: Electricity and Magnetic Fields
The grand challenge for this legacy cycle unit is for students to design a way to help a recycler separate aluminum from steel scrap metal. In previous lessons, they have looked at how magnetism might be utilized. In this instructional...
Florida State University
Florida State University: Molecular Expressions: Magnetic Fields and Compass Orientation
Simulate the creation of an induced magnetic field through the use of a simple electric circuit. An interactive demonstration is included.
TeachEngineering
Teach Engineering: Circuits and Magnetic Fields
In this activity, students use the same method as in the activity from lesson 2 to explore the magnetism due to electric current instead of a permanent magnet. Students use a compass and circuit to trace the magnetic field lines induced...
Science Education Resource Center at Carleton College
Serc: Investigating Motors and Magnetism
Students will build a simple DC motor out of metal coat hangers, a 24-guage wire armature and field magnet, 14-guage wire brushes, and build the motor so that it rotates when connected to a 10-volt DC power supply. Students will...
Other
Sc Icentre: Magnets and Magnetism
Gives a simple description of the theory of magnetism and the properties of a magnet. Very good descriptions for beginning level.
TeachEngineering
Teach Engineering: Induced Emf in a Coil of Wire
Students use a simple set up consisting of a coil of wire and a magnet to visualize induced EMF. First, students move a coil of wire near a magnet and observe the voltage that results. They then experiment with moving the wire, magnet,...
National High Magnetic Field Laboratory
Magnet Academy: Induced Current
A current can be induced in a conducting loop if it is exposed to a changing magnetic field. (Java tutorial)
National High Magnetic Field Laboratory
Magnet Academy: Joseph Henry
Joseph Henry was an American scientist who pioneered the construction of strong, practical electromagnets and built one of the first electromagnetic motors. During his experiments with electromagnetism, Henry discovered the property of...
TeachEngineering
Teach Engineering: Electromagnets
In this activity, the learners will complete the grand challenge and design an electromagnet to separate steel from aluminum for the recycler. In order to do this, students compare the induced magnetic field of an electric current with...
Physics Aviary
Physics Aviary: Induced Current Lab
This lab was designed to have students test the factors that determine how much current is induced in a circuit when area of the circuit is changed. This lab is a quantitive lab that supplements the lab on magnetic flux.
Physics Aviary
Physics Aviary: Magnetic Induction Lab
This lab was designed to have students test the things that can induce a current in a coil of wires. This lab is a purely quantitative lab.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Faraday Loop Model
Complete this model of a Faraday loop by adding the equations to explicate a conducting loop in a constant magnetic filed.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Falling Loop Model
Change the size and orientation of a conducting loop falling out of a region of uniform magnetic field. Then, the data is plotted on an interactive graph.
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.