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Report for Experiment #14 Standing Waves

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Report for Experiment #14 Standing Waves Kaleigh Schnell Lab Partner: Jasmin Wilson TA: Kunpeng Mu November 29, 2016 Abstract The lab performed this week focused on Standing Waves which are wav ... e forms that appear to be stationary. Standing waves require reflections and wave interference. Wave interference occurs through the superposition and reflections occur at the boundaries, or the ends of the string. If there is a fixed end there is an inverted reflection and if there is a free end it is a non inverted reflection. Reflected waves can interfere with incoming traveling waves to produce a standing wave. There are two special points on a standing wave, the nodes which are points on the string that do not move and antinodes which are points on the string that move through the entire wavelength. The exact definition of a standing wave is a vibration of a system in which some particular points remain fixed while others between them vibrate with the maximum amplitude.Introduction The objective of this lab was to study standing waves of a string, to examine the relationship between string tension and wave velocity, o study standing waves in an air column, and to measure sound velocity. Understanding waves is important because they are natures favorite way of transporting energy from one place to another, like storms that may rage in the middle of the ocean whipping up waves and a day later pounding them across a beach. This wave energy can travel for miles. Waves consist of peaks and valleys where there are high and low points with a certain time in between them. In this particular lab we will be examining Standing Waves. A standing wave pattern is a vibrational pattern created within a medium when the vibrational frequency of the source causes reflected waves from one end of the medium to interfere with incident waves from the source. This interference occurs in such a manner that specific points along the medium appear to be standing still. Because the observed wave pattern is characterized by points that appear to be standing still, the pattern is often called a standing wave pattern [Show More]

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