Physics > GIZMOS > Online Lab Longitudinal Waves Gizmo | All answers are 100% correct | 8 pages (All)

Online Lab Longitudinal Waves Gizmo | All answers are 100% correct | 8 pages

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What happens to air as a sound wave passes through it? 1. Observe: Click Play, and then click Pause ( ) after about 70 simulated milliseconds (does not have to be exact). Sketch the current position... s of the dividers below. Not quite sure how to draw this or recreate it however, they are tight at the beginning and then they begin to spread out, and then become tighter, which can be referenced as compression  rarefaction  compression. 2. Identify: Longitudinal waves have two important features. Compressions are regions where particles are squished together. Rarefactions are regions where particles are spread apart. In your diagram above, draw a red rectangle around each compression and a blue oval around each rarefaction. (Note: The dividers were originally spaced one meter apart.) 3. Observe: Turn on the Displacement graph. The displacement of a divider is equal to the change from its original position. The original positions of the red and green dividers are shown by the red and green dots below the tube. In which direction has the red divider moved? Right The green divider? Left 4. Interpret: Compare the displacement graph to the dividers in the tube. A. How does the graph represent movement to the right? The wave is above the x-axis. B. How does the graph represent movement to the left? The wave is below the x-axis. [Show More]

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