Curated OER
Sound Extenders
Learn about communication engineers. Students observe a demonstration using a slinky of how to diminish sound with distance. They also learn about Alexander Graham Bell and his invention of the telephone.
TeachEngineering
Teach Engineering: Sound Extenders
In this lesson plan, students are introduced to communications engineers as people who enable long-range communication. In the lesson plan demonstration, students discuss the tendency of sound to diminish with distance and model this...