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Doppler Football Demonstration Kit

Doppler Football Demonstration Kit, AP7457
Catalog Number
Doppler Football Demonstration Kit
Product Description

By: Loren Lykins, Carlisle School, Price, TX

Tackling the Doppler effect is a snap with this fun demonstration. Score extra points with your students as you drive home the concepts of sound wavelength and frequency with an audible tone emitted from a foam football. After connecting the buzzer to a 9-V battery, simply place the buzzer inside the specially-prepared football, seal, and throw! The receiver hears a higher pitch and the passer hears a lower pitch compared to the actual tone emitted by the buzzer.

Includes modified 6” foam football, buzzer, battery clip with alligator leads, and tape. Teacher demonstration notes include complete instructions, background information, and reproducible student worksheet with answers to all questions. Requires 9-volt battery, not included. For added fun, make this demonstration “official” by wearing a referee jersey (sold separately)..

Batteries, Transistor, Alkaline, 9.0 V

The AAA, AA, C, D, and 9 V batteries shown are all alkaline batteries. Consumer Reports states that while alkaline batteries cost three to five times more than acidic batteries, alkalines last 10 times longer.
Referee Jersey, XL
For added fun, make activities and demonstrations "official" by wearing a referee jersey!
Additional Resources
No Additional Resources at the time.
Flinn Catalog/Reference Manual Page 714
Flinn Middle School Catalog/Reference Manual Page 465
P.O. Box 219, Batavia, IL60510



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