Phy12L Experiment 3

# Phy12L Experiment 3 - Mass hanger with weights Mass hanger...

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Unformatted text preview: Mass hanger with weights Mass hanger with weights Iron stand with clamp Iron stand with clamp Pulley Pulley String String Oscillator Oscillator Meter stick Meter stick Cords Cords Sine wave generator Sine wave generator ABSTRACT. ABSTRACT. The range of this experiment is within the study of waves after vibrating a string of a guitar. The aims of the experiment is to determine the frequency of vibration of a string when we alter its linear mass density and when we not. A spring is attached from an oscillator which supplies energy for the string to vibrate. The spring has fixed ends wherein the waves will travel oppositely directed to each forming two meeting sine graph figure. By making the frequency of vibration constant, we can get the wavelength of the wave produced by variation of the tension applied on the spring or either its mass density of the spring. It is done in the first part and second part of the experiment. Through that method, we could establish the relationship of those variables with the frequency as well as we could compare its theoretical value with the obtained value. In accord to our result, the obtained frequency has a difference with the theoretical value of around 0.46% and 0.10%, for the first and second part, respectively. INTRODUCTION INTRODUCTION We are bathed in waves, and two of our senses are wave detectors. We hear via sound waves, and we see via electromagnetic waves in the frequency range we call light. In taking a bath or going for a swim, we are literally bathed by water waves. To produce the sound waves we hear as music, a violin string has a displacement wave moving on it, and similar statements hold for other instruments. So waves are very general phenomena. And yet in a sense, they are not microscopically fundamental. Just as there is no idea of temperature for a single molecule but only for a gas of many molecules, so too, a single molecule of violin string does not make a wave. It is the coordinated movement of all the molecules of the string that is the wave. So waves like temperature are emergent phenomena. They are not manifest at the most microscopic level, but appear at a higher level when there are many particles or a macroscopic system If the free end of a rope is moved up and down, a train of waves will be sent out and reflected from the fixed end. If the frequency of this input is just right a standing wave will be formed with some points having maximum amplitude and other points not moving at all. This type of amplitude and other points not moving at all....
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## This note was uploaded on 04/27/2011 for the course PHY 12L taught by Professor Agguire during the Spring '11 term at Mapúa Institute of Technology.

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Phy12L Experiment 3 - Mass hanger with weights Mass hanger...

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