Physics > GIZMOS > Longitudinal Waves Gizmo Lab Physics | questions and 100% correct answers | 11 pages (All)

Longitudinal Waves Gizmo Lab Physics | questions and 100% correct answers | 11 pages

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Question: How do we measure and describe waves? 1. Observe: Click Play. Observe the motions of the hand and of the green dot in the middle. A. What is the motion of the hand? The hand goes up and do... wn. B. Turn off the Lights on checkbox and observe the green dot. What is the motion of the green dot? The green dot goes up and down as well. C. Follow the motion of a single crest of the wave. How does the crest move? The crest moves down the wave. In a transverse wave, the motion of the medium (what the wave moves through—in this case, the spring) is perpendicular to the direction of the wave. So, each point of the spring moves up and down as the wave travels from left to right. 2. Measure: With the lights on, click Pause. Turn on Show rulers. A. Use the horizontal ruler to measure the horizontal distance between two crests. What is this distance? 85 This is the wavelength of the wave. B. What is the distance between the two troughs? 85 The wavelength can be found by measuring the distance between two successive crests, two successive troughs, or any two equivalent points on the wave. C. Click Reset. Set the Density to 1.0 kg/m. Click Play, and then Pause. What is the wavelength of this wave? 140 3. Measure: Click Reset. The amplitude of a transverse wave is the maximum distance a point on the wave is displaced, or moved, from its resting position. Turn off the lights. Click Play, and then click Pause. Use the vertical ruler to measure the height of the green trace, showing how far the green dot moved up and down. [Show More]

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