PHYSICS 1240 “Sound and Music” 12:30-1:45pm Tues/Thurs Duane G1B30 Instructors: Scott Parker and Jamie Smith TA and digital recording expert: Jeff Merkel Today: Nature of sound Next time: Vibrations, periodicity and pitch Outline - What is this course about? – “musical acoustics” (15 min) - Administrative details – read every word of the syllabus! (10 min) - Concept Tests (CT) and clickers (20 min) - Pre-test (help us know where we are) (30 min)Musical Acoustics – the science of musical sound - Generation - Propagation Speed of sound: v = 344 m/s - Reception/Perception - Electronic ProcessingCT 1.1 Sound travels at at a speed 344 m/s (770 mph). How fast does the air flow out of my mouth as I speak? A) Much slower than 334 m/s B) Much faster than 344 m/s C) 344 m/sCT1.2 When I speak, do the air molecules travel directly from my mouth to you ear at 344 m/s? A) Yes B)
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