PHYSIC 181 Lecture Notes - Lecture 9: Gas Constant, Ideal Gas Law, Adiabatic Invariant
6 Jan 2018
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Experiment 3: measurement of speed of sound in air. The purpose of this experiment is to measure the speed of sound in air and to review 1d stats in the questions section. You will measure the speed of sound in air by measuring how long it takes for a sound pulse to travel a measured distance. To determine the speed of sound you will plot the distance traveled as a function of time and determine the slope of the resulting line. The speed of an object may be determined by measuring its position as a function of time. If the speed, v, is constant then the position, x, will increase linearly in time, t: (cid:32) x (cid:14) vt. 0x where x0 is the objects initial position. So, by plotting position as a function of time and determining the slope of the resulting line we measure the speed of the object.
