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Exam 2 Study Guide

# Exam 2 Study Guide - Review of the 1st section Acoustics...

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Review of the 1 st section – Acoustics CSD 313L, Hearing Science, Feb. 18. 08 1) Basic physics and mathematics Three fundamental physical quantities: mass, time, and length o mass: matter that is present grams, kilograms, pound 1 lb = 454 grams o time: 1 sec = 1,000 ms 1 ms = .001s o length: spatial distance from one point to another meter, centimeter, kilometer 1 kilo = 1000 meters 1 cm = .01 m 1 mile = 1600 m 1 inch = 2.54 cm Major derived physical quantities: Velocity: speed o v = d/t o distance: we don’t care about direction o displacement: we care about direction Acceleration: tells us speed/ velocity if changing o talking about change of velocity in 1 second o a = V2-V1/ t o m/s 2 Force: generates acceleration o F = m x a o Newton (kg * m/s 2 ) Pressure: the force over an area applied on an object in a direction perpendicular to the surface o P = F/ A o Pascal Scalar and vector physical quantities Scalar: independent on direction o mass o time o speed o distance o pressure

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Exam 2 Study Guide - Review of the 1st section Acoustics...

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