Techtronics AM Radios Unit

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Published on TeachEngineering by Techtronics

Click on links below to access the Techtronics AM Radio lesson and activity published on the Teachengineering website.

• Lesson: Riding the Radio Waves
• Activity: Am I on the Radio?

Dustin and William Radio

Unit Description

Through the “Riding the Radio Waves” lesson 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 identifying the amplitude and frequency of a given waveform. Students then learn general concepts about magnetic fields, leading into how radio waves are created and transmitted. Several demonstrations can be performed in order to help students better understand these concepts. The goal of this lesson is for students to understand how the AM radios built during the “Am I on the Radio?” activity work. During the activity, students build a working radio by soldering circuit components supplied from an AM radio kit. The kits are available from Gateway Electronics online (Kit-273).