Physics  >  Lab Experiment  >  East York Collegiate Institute PHYSICS 101 Copy of Sound Waves Lab (All)

East York Collegiate Institute PHYSICS 101 Copy of Sound Waves Lab

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Sound Waves Lab This activity uses PhET simulation – Waves Intro. Select the sound option. This is a guided inquiry task. You must read and follow the instructions carefully. 1 The amplitude of s ... ound waves Tick Play Tone and Particles. Move the Amplitude slider to halfway. Press the green button on the speaker. What happens to the particles? 1.The particles are vibrating and pushing off one another, creating a ripple-like motion. ____________________________________________________________________ 2.At some points the particles are being pushed away from the speaker while at others it is being drawn closer to the speaker due to the fact that the particles that have been disturbed which then causes them to push their neighbouring particles, before bouncing back into their original positions ____________________________________________________________________ Move the Amplitude slider up and down. How does the sound change? When you move the amplitude slider up the sound becomes louder and more apparent But when you slide it down the sound becomes softer and quieter_______________________________________________________________ ____ How does the motion of the particles change? When you move the amplitude slider up the particles move more vigorously and quickly but when you move it down the particles slow down and become less energetic ____________________________________________________________________ Does the position of the pattern change? The pause button and tape might help. Yes the position changes because when you move the amplitude slider up the distance between waves is larger while if you slide it down the position changes so that the distance between waves is shorter ____________________________________________________________________ This study source was downloaded by 100000793680026 from CourseHero.com on 06-16-2021 06:12:05 GMT -05:00 https://www.coursehero.com/file/78622587/Copy-of-Sound-Waves-Labdocx/ This study resource was shared via CourseHero.comClick the Waves button. The Wave setting shows areas where the particles are pushed together as light coloured and where they are far apart as dark. Vary the amplitude and check what you wrote about the position of the pattern. Sound waves are pressure waves in the air. In areas where the particles are compressed the air pressure is high and where the particles are spread out (we call that rarefaction) the pressure is low. The wavelength of a sound wave is the distance between 2 compression areas or 2 rarefaction areas. Use the pause button and tape to measure the wavelength of your soundwave. __ [Show More]

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