Based off of the hit television show NUMB3RS, this lesson introduces students to modern applications of mathematics, namely espionage. Through this lesson, students will learn of Van Eck Phreaking, in which electromagnetic radiation...

When hikers and skiers go into terrain with a risk of avalanches, they take safety equipment including avalanche rescue beacons. An avalanche rescue beacon sends and receives electromagnetic field signals that travel in circular...

This activity is designed for students to apply their knowledge of mathematics and physics to "real life" situations. Students are presented with the situation that they are on a camping trip and wish to know the wavelength emitted by a...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

An electromagnetic simulation which replicates moving charged particles in two identical magnetic fields separated by a zero magnetic field gap.

This module simulates the excitation of hydrogen atoms through irradiation with electromagnetic radiation of different wavelengths.

Just a year after electromagnetism was discovered, the great scientific thinker Michael Faraday figured out how to turn it into motion. (Java tutorial)

What makes those kernels pop inside your microwave? A whole lot of water interacting with a whole lot of high-frequency electromagnetic waves. (Java tutorial)

Although he was not the first person to observe a connection between electricity and magnetism, Andre-Marie Ampere was the first scientist to attempt to theoretically explain and mathematically describe the phenomenon. His contributions...

American inventor Lee De Forest was a pioneer of radio and motion pictures. He received more than 300 patents over the course of his lifetime, the most important of which was for a three-electrode vacuum tube, or triode, that he called...

The discovery of radio waves, which was widely seen as confirmation of James Clerk Maxwell's electromagnetic theory and paved the way for numerous advances in communication technology, was made by German physicist Heinrich Hertz. In the...

Charles-Augustin de Coulomb invented a device, dubbed the torsion balance, that allowed him to measure very small charges and experimentally estimate the force of attraction or repulsion between two charged bodies. The data he obtained...

[Free Registration/Login Required] In this interactive you will excite an electron by dragging it into a higher orbital and use the table to see what wavelength of electromagnetic radiation is emitted when it returns to its lowest orbit....

A look at where the Higgs boson exists within the Standard Model of particle physics. Explains forces in the Model (electromagnetism, strong nuclear force, and weak nuclear force) and offers thoughts on how the Higgs particle might be...

A collection of several pages explaining the principles which underlie Rayleigh scattering of light.

This video segment from Swift: Eyes through Time introduces and explains theories of the origin of gamma-ray bursts. [4:11]

This online exploration provides an opportunity to identify the different properties of waves and the relationship that exists between energy, wavelength, and frequency. Correlate images from the Hubble Telescope to the wavelength,...

[Free Registration/Login may be required to access all resource tools.] Students investigate the fundamentals of light including its source, how it is defined for measurements, how we perceive color, and the situations that make an...

The Sound and Light unit provides students with an understanding of sound and light waves through the theme of the "Sunken Treasure," a continuous story line throughout the lessons. In Lessons 1-5, students learn about sound, and in...

The behavior of light waves is introduced and discussed. Also, polarization, color, diffraction, and interference are introduced and discussed thoroughly as supporting evidence of the wave nature of light.

[Free Registration/Login may be required to access all resource tools.] In the following tutorial students will describe the relationships between speed, wavelength, and frequency of light. They will understand the photoelectric effect...

In this computer-based virtual lab, students will learn about the layers of Earth's atmosphere by launching virtual balloons to collect temperature and pressure data at various altitudes. Given a limited number of balloon flights,...

Students explore traveling waves and wave propagation. The resource links to courses with videos, online textbook materials, simulations, and practice problems.

This article surveys inductance and its different forms. It discusses numerous topics associated with inductance such as Faraday's Law, self and mutual inductance, inductors, and magnetic field lines.