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Teach Engineering
Circuits and Magnetic Fields
Have your class use compasses to try to find the magnetic field around an electric current. Groups use the same technique to visualize magnetic fields as they did in the second activity in the series, but this time, the field is...
Teach Engineering
Magnetic Fluids
Teams work as material engineers to create ferrofluids, whose shape is influenced by magnetic fields. The activity, which is the fourth in the six-part series, has the teams create magnetic ink and use it to write, testing it with a...
Curated OER
Coulomb's Law and Induced Polarization
Engage your aspiring physicists in a series of lab activities directied at demonstrating the behavior of electric force. In completing these exercises, learners will explore Coulomb's and Gauss's Laws. Well-written directions to four...
Teach Engineering
Electricity and Magnetic Fields
Introduce your class to the idea of magnetic fields around electrical wires with an activity that provides the information about the direction of a magnetic field around a wire carrying an electric current.
Teach Engineering
Induced EMF in a Coil Wire
Small groups investigate the interaction between a coil of wire and a magnet to create an electromagnetic field and observe the voltage they create. Through further interactions, they realize a conductor can be charged from the...
Curated OER
Review of Magnetic Forces and Fields
In this physics learning exercise, students answer 50 multiple choice questions on properties of and behavior of magnetic fields and forces.
Curated OER
Deducing Induction
High schoolers examine how changing magnetic fields induce currents in
loops and coils, determine orientation and magnitude of magnetic field,
describe Michael Faraday's experiments that led to conclusion that changing
magnetic force...
Curated OER
Magnetic Induction
In this electricity worksheet, students learn about magnetic induction plus compare a generator with a motor. Students also review the different kinds of energy and the formulas associated with energy. This worksheet has 28 matching, 10...
Curated OER
Mutual Inductance
In this mutual inductance learning exercise, students answer 12 questions about electric currents, voltage, magnetic coupling, and magnetic flux as they relate to inductance.
Curated OER
Lenz's Law
High schoolers conduct a series of experiments on electromagnetic induction. In this physics lesson, students apply the right hand rule to determine the current direction and electromotive force. They test Lenz's and Faraday's law by...
Curated OER
The Founder of Electromagnetism
Students identify and study the founder of electromagnetism. In this magnetism lesson students complete several experiments including building a galvanometer.
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.
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...
Curated OER
Intermediate Electromagnetism and Electromagnetic Induction
In this electrical circuit activity, students answer a series of 24 open-ended questions about electromagnetism and electromagnetic induction. This activity 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...
TeachEngineering
Teach Engineering: Electricity and Magnetic Fields
The grand challenge for this legacy cycle unit is for learners 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 lesson,...
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...