College of Liberal Arts & Sciences
3B40.10 - Doppler Effect - Buzzer and String
Attach the Piezo buzzer to the 9 volt battery that is tied to the string. Swing the unit overhead and listen to the effect.
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- Neil A. Downie, "12. Bat Doppler", Vacuum Bazookas, Electric Rainbow Jelly and 27 Other Saturday Science Projects, p. 102.
- Robert Ehrlich, "K.1. Whirling a Beeper in a Circle", Turning the World Inside Out and 174 Other Simple Physics Demonstrations, p. 143 - 144.
- James Cunningham and Norman Herr, "6.4.2. Doppler Effect", Hands-On Physics Activities with Real Life Applications, p. 416.
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- Julius Sumner Miller, Q48 & A48, Millergrams I – Some Enchanting Questions for Enquiring Minds, p. 36 & 93.
- Julius Sumner Miller, Q174 & A174, Millergrams II – Some More Enchanting Questions for Enquiring Minds, p. 43 & 98.
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