Speed of Sound Lab (4).pdf

Speed of Sound Lab (4).pdf - Jennifer Wurm Speed of Sound...

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Jennifer Wurm Speed of Sound Experiment Introduction When sound is made in a resonance tube, tiny pulses of air pressure mirror the appearance of a longitudinal wave pattern. This happens because many times per second, the air is being squeezed forwards and backwards by the speaker, creating a pattern of high pressure areas followed by low pressure areas. Standing waves occur when it appears that a sine wave has stop moving, attached to a fixed point. A wave moves forward from the fixed point while another moves in the opposition direction. They interfere and add or subtract to appear like there is no movement in the waves. Resonance increases the original standing wave s strength and vibration occurs when the original wave in the tube interferes and is synchronized with the reflected wave. When the two waves meet at an amplitude of zero, a node occurs, and when the two waves amplitudes are at the maximum distance away from each other, an antinode occurs. A microphone can pick up the vibrations of the nodes and antinodes of the resonance standing wave. The goal of this experiment is to find the speed of sound of standing waves in resonance at different frequencies. By measuring the distance between nodes and antinodes at a given
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