# Wavelength and Sound

Powerful Essays
2032 Words
Grammar
Plagiarism
Writing
Score
Wavelength and Sound
Experiment 7: Velocity of Sound
Laboratory Report
Hazel Guerrero, Kyle Iddoba, Matthew Jocson, Thea Lagman
Department of Biological Sciences
College of Science, University of Santo Tomas
Espanya, Manila Philippines

Abstract Verification of the relationship between frequency of sound and its wavelength and the determination of the velocity and the speed of sound in different mediums was the main focus of this experiment. The speed of sound and its velocity was determined using the resonance tube apparatus and Kundt’s tube respectively. A vernier microphone was used to note the time interval between wavelengths. The results obtained on the second and third experiment gathered a minimal compared error compared to the first experiment.
Introduction
Sound is a longitudinal wave in a medium. Sound waves usually travel out in all directions from the source of sound, with an amplitude that depends on the direction and distance from the source.

A sound wave is a pressure disturbance that travels through a medium by means of particle-to-particle interaction. As one particle becomes disturbed, it exerts a force on the next adjacent particle, thus disturbing that particle from rest and transporting the energy through the medium. Like any wave, the speed of a sound wave refers to how fast the disturbance is passed from particle to particle. While frequency refers to the number of vibrations that an individual particle makes per unit of time, speed refers to the distance that the disturbance travels per unit of time.

The speed of any wave depends upon the properties of the medium through which the wave is traveling. The phase of matter has a tremendous impact upon the elastic properties of the medium. In general, solids have the strongest interactions between particles, followed by liquids and then gases. For this reason, longitudinal sound waves travel faster in solids than they do in liquids than they do in gases.

The objectives of this experiment is to

References: 1.) http://www.physicsclassroom.com/class/sound/u11l2c.cfm 2.) http://www.transtutors.com/physics-homework-help/sound/velocity-of-sound.aspx 3.) Young, H., Freedman, R. (2004). University Physics with Modern Physics. California: McGraw-Hill.

## You May Also Find These Documents Helpful

• Satisfactory Essays

1. If the room temperature for this experiment had been lower, the length of the resonating air column would have been shorter. The length of air column is directly proportional to temperature due to v=331msT273 .…

• 604 Words
• 3 Pages
Satisfactory Essays
• Satisfactory Essays

Sound waves are generated from the speaker and carried across a medium (air) to a…

• 473 Words
• 2 Pages
Satisfactory Essays
• Good Essays

The purpose of this experiment is to measure the speed of sound in air and to determine the effects of frequency on the speed of sound.…

• 836 Words
• 4 Pages
Good Essays
• Good Essays

9. In a compression wave, particles in the medium move in the same direction as the wave.…

• 2217 Words
• 9 Pages
Good Essays
• Satisfactory Essays

1. How is sound communicated from one person to another? Vibrations created in vocal cords travel out of the mouth and disturb the air around us.…

• 136 Words
• 1 Page
Satisfactory Essays
• Satisfactory Essays

The word "noise" is derived from the Latin word "nausea" meaning seasickness. Noise can be defined as an unwanted or undesired sound. Decibel is the standard unit for measurement of sound. Usually 80 db is the level at which sound becomes physically painful.…

• 305 Words
• 1 Page
Satisfactory Essays
• Good Essays

This experiment tried to determine the speed of sound waves. To determine the speed, a resonance tube full of water was used and two different tuning forks of known frequency. Each fork was struck above the water level and the water level was slowly moved down until a resonance was heard. The distance where the resonance occurs were recorded and the speed of the waves were determined. The experimental speed of sound was then compared to the calculated theoretical speed of sound. The results obtained were very close to the theoretical speed of sound thus proving that they were precise.…

• 757 Words
• 4 Pages
Good Essays
• Good Essays

This lab will investigate the properties of mechanical waves such as a longitudinal wave, focusing on the question: Does a change in the frequency of a wave result in a significant and convincing change in the speed of the wave?…

• 634 Words
• 3 Pages
Good Essays
• Good Essays

Sound energy is in the form of invisible waves. Since our hearing can perceive sounds from 20-20,000 Hz, we're talking about wavelengths that range from 11/16" at 20,000 Hz, to over 56 feet at 20 Hz.…

• 1173 Words
• 5 Pages
Good Essays
• Good Essays

Sound travels when particles interact with each other when a sound source effect the first particle of a medium. This then causes the particle to vibrate backwards and forwards which then means that the particle collides with its neighbouring particles causing them to shift in the exact 0.4cm…

• 1250 Words
• 5 Pages
Good Essays
• Good Essays

What is sound? Sound is a wave, a pattern—simple or complex, depending on the sound—of changing air pressure. Sound is produced by vibrations of objects. The vibrations push and pull on air molecules. The pushes cause a local compression of the air (increase in pressure), and the pulls cause a local rarefaction of the air (decrease in pressure). Since the air molecules are already in constant motion, the compressions and rarefactions starting at the original source are rapidly transmitted through the air as an expanding wave. When you throw a stone into a still pond, you see a pattern of waves rippling out in circles on the surface of the water, centered about the place where the stone went in. Sound waves travel through the air in a similar…

• 751 Words
• 4 Pages
Good Essays
• Powerful Essays

Noise can be described as sound without agreeable musical quality or as an unwanted or undesired sound. Thus noise can be taken as a group of laud, non harmonious sounds or vibrations that are unpleasant and irritating to ear.…

• 1252 Words
• 6 Pages
Powerful Essays
• Better Essays

Sound is essential to our daily lives, but noise is not. Noise is generally used as an unwanted sound, or sound which produces unpleasant effects and discomfort on the ears.…

• 1206 Words
• 5 Pages
Better Essays
• Better Essays

Noise can be defined as unwanted or undesirable sound. The word “noise” is derived from Latin word “nausea” meaning seasickness. Be it human or machine-created noise disrupts the activity and balance of life. Humans, animals, plants and even inert objects like buildings, monuments and bridges have been the victims of noise pollution. Noise pollution is considered as major hazards of modern life especially in urban areas-areas that are most industrialized and urbanized. Noise by definition is unwanted sound, what is pleasant to some cars it may be extremely unpleasant to other, depending on a number of physiological factors the sweetest music, if it disturbs person who is trying to concentrate or sleep is a noise to him. Just as the sound of pneumatic reverting hammer is noise to nearly everyone. Sound is a…

• 1257 Words
• 6 Pages
Better Essays
• Good Essays

Attack - The first part of the sound that you hear. Some sounds (like pianos and drums) have a very fast attack; the loudest portion of the sound occurs very quickly. A sound with a slow attack rate (such as a soft string section) slowly increases in volume.…

• 3306 Words
• 14 Pages
Good Essays