![Page 1: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/1.jpg)
WELCOMEto
Physics is Phun
![Page 2: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/2.jpg)
Pleasebe
Seated
![Page 3: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/3.jpg)
Physics Lecture-DemonstrationWeb Site
Summer Programs for Youth
Physics Olympics
Physics Question of the Week
![Page 4: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/4.jpg)
The Sounds of Science
Physics is Phun
March 2007
![Page 5: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/5.jpg)
Reference book:
The Physics of Sound, 3rd edition (2005)
by Richard E. Berg and David G. Stork
published byPearson/Prentice-Hall
![Page 6: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/6.jpg)
The Overtone Series
![Page 7: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/7.jpg)
Standing waves in a string
![Page 8: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/8.jpg)
The Overtone Series
![Page 9: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/9.jpg)
Standing waves in air columns
![Page 10: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/10.jpg)
The Overtone Series
![Page 11: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/11.jpg)
Standard electronic wave forms
• Sine wave
• Sawtooth wave
• Pulse train
• Triangular wave
• Square wave
![Page 12: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/12.jpg)
Fourier’s Theorem:Jean Baptiste Joseph Fourier (1768 - 1830)
Any physical function that varies periodically with time with a
frequency f can be expressed as a superposition of sinusoidal components of frequencies:
f, 2f, 3f, 4f, ... --from “Wikipedia”
![Page 13: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/13.jpg)
Fourier SynthesisSawtooth wave
![Page 14: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/14.jpg)
Fourier SynthesisPulse train wave
![Page 15: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/15.jpg)
Fourier SynthesisTriangular wave
![Page 16: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/16.jpg)
Fourier SynthesisSquare wave
![Page 17: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/17.jpg)
Fourier Analysisor
Spectrum Analysis
![Page 18: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/18.jpg)
Sine Wave Spectrum
![Page 19: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/19.jpg)
Sawtooth Wave Spectrum
![Page 20: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/20.jpg)
Pulse Train Spectrum
![Page 21: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/21.jpg)
Triangular Wave Spectrum
![Page 22: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/22.jpg)
Square Wave Spectrum
![Page 23: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/23.jpg)
Analysis of
Musical Sounds
![Page 24: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/24.jpg)
![Page 25: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/25.jpg)
![Page 26: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/26.jpg)
Fourier Analysisof
Sounds ofMusical Instruments
![Page 27: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/27.jpg)
Recorder Wave and Spectrum
![Page 28: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/28.jpg)
Violin Wave and Spectrum
![Page 29: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/29.jpg)
Crumhorn Wave and Spectrum
![Page 30: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/30.jpg)
Clarinet Wave and Spectrum
![Page 31: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/31.jpg)
Factors in Tone Quality1. Amplitudes of harmonics
2. Attack and decay transients
3. Inharmonicities
4. Formants
5. Vibrato
6. Chorus effect
![Page 32: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/32.jpg)
The Singing Formant
![Page 33: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/33.jpg)
Origin of Vocal Formants(~17.5 cm closed tube)
Frequency:
f1 = 500 Hz
f3 = 1500 Hz
Vocal range:
150-850 Hz
500-2500 Hz
Mode:
![Page 34: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/34.jpg)
Simple formant model
![Page 35: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/35.jpg)
Origin of Vocal Formants(~17.5 cm closed tube)
Frequency:
f1 = 500 Hz
f3 = 1500 Hz
Vocal range:
150-850 Hz
500-2500 Hz
Mode:
![Page 36: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/36.jpg)
Vowel formant production
Source: http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
![Page 37: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/37.jpg)
Vowel Formant Frequencies
![Page 38: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/38.jpg)
Sound Spectrograms
![Page 39: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/39.jpg)
Vocal formants for vowel sounds
![Page 40: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/40.jpg)
Voice and Synthesizer “Wow”
![Page 41: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/41.jpg)
Vocal Spectrograms
![Page 42: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/42.jpg)
Computerized Speech Laboratory
Courtesy of Kay Elemetrics Corp.
![Page 43: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/43.jpg)
Helium Voice
Singing frequency remains the same
(vibration of vocal folds)
Formant frequencies rise because
She >> Sair
Why?
![Page 44: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/44.jpg)
Vowel formant production
Source: http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
![Page 45: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/45.jpg)
![Page 46: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/46.jpg)
Speed of Sound in
Helium and Sulfur Hexafluoride
He SF6
M/Mair 1/7 4.6
Vs/S 2.6 0.5
![Page 47: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/47.jpg)
![Page 48: WELCOME to Physics is Phun. Please be Seated Physics Lecture-Demonstration Web Site Summer Programs for Youth Physics Olympics Physics Question of the](https://reader035.vdocument.in/reader035/viewer/2022062517/56649f165503460f94c2b997/html5/thumbnails/48.jpg)
The EndSee you next time!
We are on the web at
http://www.physics.umd.edu/lecdem/
Animated Gifs compliments of bellsnwhistles.com