PPT-Standing Waves and Sound Resonance

Waves on a String in an openended pipe and in a closedended pipe Warmup assume the string is fixed at both ends 1 st HarmonicFundamental Frequency 2 nd Harmonic 1 st Overtone. Introduction to Physics II. . Class 3 – . Outline:. Ch. 21, sections . 21.1-21.4. The . Principle of Superposition . Standing . Waves . Nodes . and Antinodes . Musical . Instruments. Class 3 – . By the end of the day today, IWBAT…. Analyze characteristics of waves (velocity, frequency, amplitude, wavelength. ).. Do Now:. . Which of the following would be the. best physical demonstration of . pp. 487 - 493. Mr. Richter. Agenda. Podcast Check. Questions about 13.1 Sound Waves. Upcoming Schedule. Notes:. Intensity and Volume. Decibel levels. Forced Vibrations and Resonance. Upcoming Schedule. and. Perception of sound. Lecture 8. Pre-reading. : . §16.3. Fourier theorem. Why sine waves?. Any wave shape can be represented as a superposition of normal modes (components). §15.8. Sound as Pressure Wave. 13.1 – Sound Waves. Objectives. * Explain how sound waves are produced. * Relate frequency to pitch. * Compare the speed of sound in various media. * Relate plane waves to spherical waves. * Recognize the Doppler effect, and determine the direction. A) zero everywhere. B) positive everywhere.. C) negative everywhere. D) depends on the position.. Clicker Question. Room Frequency BA. No dependence on amplitude. String pieces are all at turning points! . CHAPTER 17. Interference. Constructive and Destructive Interference: BEATS. Standing Waves:. Transverse-Stringed Instruments. and . Longitudinal-Wind Instruments.. Diffraction. . Speakers. . 17.6 . Sound. © 2016 Pearson Education, Inc.. Goals for Chapter 12. To describe mechanical waves.. To study superposition, standing waves and sound.. To present sound as a standing longitudinal wave.. To see that waves will interfere (add constructively and destructively).. Wave Properties. There are 6 main properties, or interactions, of waves that occur when a wave comes in contact with another wave , or a boundary. . The 6 Interactions of waves are. Interference. Diffraction. Use your knowledge of waves & physics to answer the question.. Sound. Longitudinal wave phenomenon that consists of successive compressions and rarefactions of the medium through which the wave travels. . . Class 3 – . Outline:. Ch. 21, sections . 21.1-21.4. The . Principle of Superposition . Standing . Waves . Nodes . and Antinodes . Musical . Instruments. Class 3 – . Outline:. QuickCheck. . 1.1. for . two identical waves traveling in opposite directions.. .  Snapshots . of the blue and the green waves and their red sum shows a wave that appears to not be traveling..  Because . the resultant red wave is not traveling it is called a . Sound. The word ". sound. " may be . defined. in . two ways . (. objectively. and . subjectively. ).. . Objectively. , the . sound. is a . type of wave-motion taking place in a material medium. Periodic Motion. Motion that repeats in a regular cycle is called . periodic motion. . . The revolution of a planet about its sun is an example of periodic motion. The highly reproducible period (T) of a planet is also called its year..