PBS
Pbs Learning Media: Radio Waves: Fm vs. Am
This brief essay from A Science Odyssey Web site describes the difference between FM and AM radio waves.
PBS
Pbs Learning Media: How Is a Radio Wave Emitted?
This illustrated essay from A Science Odyssey Web site explains the science behind radio waves, including the role of electrons and electromagnetic fields.
NOAA
Noaa: Space Environment Topics: Radio Wave Propagation [Pdf]
NOAA has produced a series of topic papers for use by teachers and students. This paper is on the increase of radio wave activity and the effects solar emissions have on it. PDF format.
TeachEngineering
Teach Engineering: Riding the Radio Waves
In this instructional activity students learn how AM radios work through basic concepts about waves and magnetic fields. Waves are first introduced by establishing the difference between transverse and longitudinal waves, as well as...
CK-12 Foundation
Ck 12: Physical Science: Radio Waves
[Free Registration/Login may be required to access all resource tools.] Radio waves and how they are used for AM and FM radio and television.
NASA
Nasa: Electromagnetic Spectrum: Radio Waves
Radio waves have the longest wavelengths in the electromagnetic spectrum. This NASA article discusses AM, FM, TV, cell phone, as well as radio astronomy, which all use this technology.
Creative Science Centre
Creative Science Centre: Demonstration of Radio Waves Generated by Mobile Phone
Described is a simple low cost home-made device that converts the radio wave energy from a mobile phone signal into electricity to light an LED. No battery or complex circuitry is required. The device can form the basis of a range of...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Radio Waves & Electromagnetic Fields
Manually or computer generated, students can test radio waves being transmitted from a virtual radio station to a home. Study the curve, vectors, electric field, and more.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Radiowaves and Electromagnetic Fields
Broadcast radio waves from KPhET. Wiggle the transmitter electron manually or have it oscillate automatically. Display the field as a curve or vectors. The strip chart shows the electron positions at the transmitter and at the receiver.
PBS
Pbs: Science Odyssey: Radio Transmission
PBS site explores radio transmission and provides a fun activity to go along with it. (Shockwave required) Click on links to discover more about the early years of radio, how radio waves are emitted, what the difference is between AM and...
University of Colorado
University of Colorado: Physics 2000: Electromagnetic Waves
Using a student-teacher dialogue format, this page discusses the nature of light as an electromagnetic wave and the electromagnetic spectrum.
Creative Science Centre
Creative Science Centre: Demonstration to Show Mobile Phones Emit Radio Waves
This is a very simple and cheap device that demonstrates that mobile phones generate radio waves.
Science Buddies
Science Buddies: Wave Blockers
What do the radio, TV, radio controlled cars, and cell phones all have in common? They all use invisible waves to transmit information. Find out which materials block radio waves, and which materials allow radio waves to pass through in...
Creative Science Centre
Creative Science Centre: Making a Rough Science Short Wave Crystal Set Radio
Presents plans for making a shortwave crystal set radio that is capable of receiving stations from around the world with a good antenna and earth connection.
PBS
Pbs Learning Media: Radio Transmission
This interactive activity from A Science Odyssey tracks the journey of a sound wave from the moment a musician sings into a microphone until his voice reaches the vibrating speakers of an AM Radio.
PBS
Pbs: Cet: A Science Odyssey: Radio Transmission
In this illustrated tutorial, find out how radio signals get transmitted from an antennae to the air.
Creative Science Centre
Creative Science Centre: G1 Exg's Radio Page
An extensive collection of links on anything to do with amateur radio, including experiments and projects, crystal set radio, radio magazines, educational sites, and materials suppliers.
TeachEngineering
Teach Engineering: Am I on the Radio?
During this activity, students create a working radio by soldering circuit components supplied from an AM radio kit. Since this activity is carried out in conjunction with the associated lessons concerning circuits and how an AM radio...
Georgia Department of Education
Ga Virtual Learning: Electromagnetic Waves
Through informational text, interactive activities, practice problems, and virtual simulations, students explore the properties of electromagnetic waves.
National High Magnetic Field Laboratory
Magnet Academy: Heinrich Hertz
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...
University of California
Uc Berkeley: Radio Spectrum
From a course titled "Structure and Interpretation of Signals and Systems." A discussion of the entire radio spectrum, listing wavelength and frequency values for its various parts. The uses of each region of the radio spectrum is...
Discovery Education
Discovery Education: The Em Spectrum: Waves of Energy
Students are introduced to the electromagnetic spectrum through this group research activity. Each group investigates a different wavelength range within the em spectrum and reports back to class. Discussion ideas also included.
Wikimedia
Wikipedia: Radio Telescope
Wikipedia provides detailed information on radio telescopes, including an image, hyperlinked terms, and related topics.
TED Talks
Ted: Ted Ed: Light Waves, Visible and Invisible
Lucianne Walkowicz shows us the waves just beyond our perception: microwaves, radio waves, x-rays and more. [5:58]
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