Physics 207: Lecture 24, Pg 1Physics 207,Physics 207, Lecture 24, NovLecture 24, Nov 25 25 ‘‘0909WavesWavesTraveling wavesTraveling waves (Chapter 20) (Chapter 20)- Wave Equation- Wave Equation- Power and Intensity (decibels)- Power and Intensity (decibels)Standing wavesStanding waves (Chapter 21)(Chapter 21)- Superposition- Interference- Standing Waves- Musical Instruments Thermodynamics TemperatureASSIGNMENTS:ASSIGNMENTS:Read Chapters 17 and 18Read Chapters 17 and 18MP Exam 3 Practice ProblemsMP Exam 3 Practice ProblemsPhysics 207: Lecture 24, Pg 2Traveling Transverse WaveA.B.Physics 207: Lecture 24, Pg 3Physics 207: Lecture 24, Pg 5Physics 207: Lecture 24, Pg 6Physics 207: Lecture 24, Pg 8Physics 207: Lecture 24, Pg 9Two sinusoidal waves travel on identicalstrings with identical tensions. Thewavelength of wave 1is λ1, and thewavelength of wave 2 is λ2=2λ1.What is the ratio of the frequencies of thewaves? f2/f1 = ?A. 1/4B. 1/2C. 1D. 2E. 4Physics 207: Lecture 24, Pg 10Physics 207: Lecture 24, Pg 12Power and IntensityPower and IntensityPhysics 207: Lecture 24, Pg 13Acoustical IntensityAcoustical Intensity is Measured in is Measured in decibels (dB)decibels (dB)Physics 207: Lecture 24, Pg 14WavesWavesTraveling waves (Chapter 20)Traveling waves (Chapter 20)- Wave Equation- Wave Equation- Power and Intensity (decibels)- Power and Intensity (decibels)Standing wavesStanding waves (Chapter 21)(Chapter 21)- Superposition- Interference- Standing Waves- Musical Instruments Thermodynamics TemperaturePhysics 207: Lecture 24, Pg 16Physics 207: Lecture 24, Pg 17Try out this Simulation!Try out this Simulation!http://phet.colorado.edu/simulations/sims.php?sim=Wave_on_a_StringPhysics 207: Lecture 24, Pg 18Physics 207: Lecture 24, Pg 19Center of Turkey should be at leastCenter of Turkey should be at least165165oo F = 74F = 74oo C = 347 K ! C = 347 K
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