OScienceScene.com PHSA 1050 Topic 8 In Class January 2023 c. Increase and decrease the amplitude and record what happens to the waves and the sound. Record your results. d. What can you conclude about amplitude and frequency of sound waves? 13. Now go to the Measure tab. Notice the timer in the yellow box. Press start and then stop to measure the or time of one of the waves exiting the speaker. Make sure the timer is starting from 0.0000 sec. a. Measure how long it takes the sound waves to reach 5 meters. seconds. Calculate the speed of sound in m/s. b. Increase and decrease the frequency and amplitude of the waves and see if they make a difference in the speed of the waves. Record your results. Do frequency and wavelength affect the speed of webA sound? Explain how you arrived at this conclusion. 14. Go to Two Source Interference tab. Make sure audio enabled is checked. a. Click on a speaker and drag further and closer to the other speaker. Describe what happens to the sound. Why does this happen? b. What happens when you adjust the frequency and amplitude of the two sources? 15. Go to Interference by Reflection tab. Notice the waves reflecting off of the wall. a. Change the wall's angle by sliding the bar in the control panel. What happens to the reflections when the slider is in the most up position as compared to when it is in the most down position? b. Change the wall's position by changing the sliding bar in the control panel. What happens to the reflections as the wall gets further away from the source of sound? c. When is the interference greatest; when the wall is closer or further away from the sound source? $6. Go to Beats Website. https://www.compadre.org/osp/EJSS/4370/203.htm The sound is muted when you go Go this website. Click on the red button (speaker symbol) to hear the beats. Notice you can control the frequency of each sound source. Change the frequency of the second source to 301.0 Hz, and then turn the speaker on to hear the beats. Then change the second sound source to 302.0 Hz and then turn the speaker on to hear the beats. Then change a to 303.0 Hz and listen. Do you notice the difference? Describe what you heard. Using your own words describe why you heard this phenomenon. yonoupon rigid a ovalle