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Wind Chimes

wind chimesHigh school students design and build wind chimes using their knowledge of physics and sound waves, and under such constraints as weight, cost, and the number of musical notes their chimes must generate. They make mathematical computations to determine the pipe lengths. Links to similar activities for younger students included in activity scaling section.

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Unring A Bell? Acoustic Engineers Can!

GE unringing Burmese temple bellWho says you can’t un-ring a bell? As a team of acoustical engineers and a biomedical engineering student demonstrate, “destructive interference” can can silence even a huge temple bell – leaving a sleeping baby undisturbed.

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Simple Musical Instruments

Cardboard guitarPairs of students in grades 3 – 5 investigate sound frequencies and acoustic engineering by creating four different instruments – a shoebox guitar, water-glass xylophone, straw panpipe, and soda bottle organ.

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Lesson: Sound Booth Construction

sound booth1In this activity, students in grades 7-9 explore the sound-dampening capability of materials by designing and prototyping model sound booths. They learn about how sound is reflected and absorbed, and how it travels through various materials, providing an overview of sound dampening propagation in the context of engineering.

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