National High Magnetic Field Laboratory
Magnet Academy: Edward Purcell
Edward Mills Purcell was an American physicist who received half of the 1952 Nobel Prize for Physics for his development of a new method of ascertaining the magnetic properties of atomic nuclei. Known as nuclear magnetic resonance...
Khan Academy
Khan Academy: What Is Magnetic Flux?
A reference page to learn about magnetic flux means and how to calculate it. Reference page includes explanation and exercise.
National High Magnetic Field Laboratory
Magnet Academy: John Ambrose Fleming
John Ambrose Fleming was an electronics pioneer who invented the oscillation valve, or vacuum tube, a device that would help make radios, televisions, telephones and even early electronic computers possible. A brilliant innovator,...
National High Magnetic Field Laboratory
Magnet Academy: Electromagnetic Deflection in a Cathode Ray Tube, I
Discovering how cathode rays behave in a magnetic field was a big step forward for scientists trying to understand the mysterious phenomenon. (Java tutorial)
Wolfram Research
Wolfram Science World: Magnetic Permeability
This site defines magnetic permeability in terms of magnetic fields, and relates magnetic permeability to magnetic susceptibility and relative permeability.
TeachEngineering
Teach Engineering: Electromagnets
For this activity, the students 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...
PBS
Pbs Learning Media: See a Reversal
View a computer model simulation from NOVA Online that illustrates what happens during a magnetic field reversal, an infrequent occurrence that may be currently underway.
Concord Consortium
Concord Consortium: Molecular Workbench Showcase: Physics, Electromagnetism
Students can use these simulations to understand concepts in electromagnetism. Simulations are available on the following concepts: Lorentz Force, The Hall Effect, capacitor, conductor, transistor, cyclotron, static electricity....
Nine Planets
The Nine Planets: Earth Facts
Find lots of information about our planet Earth here. Covers basic facts, Earth's history, layers of the Earth, plate tectonics, composition of the atmosphere, Earth's magnetic field, and some facts about our moon.
National Earth Science Teachers Association
Windows to the Universe: Magnetic Field Reversals
Provides a short article, with embedded links, about magnetic reversals and how they might occur.
Wikimedia
Wikipedia: Magnet
Wikipedia.com provides an excellent introductory site on magnets. Including basic information describing different types of magnets and their characteristics.
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.
PBS
Nova: Magnetic Storms: When Compasses Pointed South
Earth's magnetic poles have reversed themselves throughout its long history. Find out what scientists know about these reversals. A geologic time line shows when the reversals occurred.
Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: Hot Topics: Seafloor Magnetics
The earth's magnetic poles have reversed themselves throughout the earth's history. Find out how scientists know that this happened.
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...
CK-12 Foundation
Ck 12: Earth Science: Magnetic Evidence for Seafloor Spreading
How magnetic reversals on the seafloor provide evidence for seafloor spreading. [Free Registration/Login may be required to access all resource tools.]
CK-12 Foundation
Ck 12: Magnetic Polarity Evidence for Continental Drift
[Free Registration/Login may be required to access all resource tools.] How magnetic polarity provided more evidence for moving continents.
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...
CK-12 Foundation
Ck 12: Physical Science: Solenoid
[Free Registration/Login may be required to access all resource tools.] What a solenoid is and how to change the strength of its magnetic field, and some uses of solenoids.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: E X B Trajectory Model
Simulate the motion of a charged particle in electric and magnetic fields, and then complete the equations of motion using the Lorentz force law.
Khan Academy
Khan Academy: Earth's Magnetic Shield Quiz
Try this quiz about Earth's magnetic shield.
CK-12 Foundation
Ck 12: Physics Simulation: Doorbell
[Free Registration/Login Required] Understand how magnetic fields generated by solenoid coils can be used to create an operating doorbell using this interactive simulation. A PDF worksheet and a video tutorial are also available. [1:51]
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.
National High Magnetic Field Laboratory
Magnet Academy: William Gilbert
William Gilbert was an English physician and natural philosopher who wrote a six-volume treatise that compiled all of the information regarding magnetism and electricity known at the time. The work included descriptions of many of...