Wavelength and Sound

Powerful Essays
Topics: Wavelength, 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

  • Better Essays

    Wavelength

    • 1009 Words
    • 5 Pages

    ‘‘Wavelength, Frequency, Energy and Flame Color Produced by Different Metals’’ Period 8 October 30th 2013 October 24th 2013 Sosa #2 ABSTRACT: The purpose of this project was to identify the different flame colors that the different metals release, compare the flame colors with wavelength, compare the wavelength of different flames to their frequencies and energies, explain how the flames colors were produced, compare and contrast the results obtained in the lab with regard…

    • 1009 Words
    • 5 Pages
    Better Essays
  • Better Essays

    Chemistry Wavelength

    • 2460 Words
    • 10 Pages

    Wavelength, frequency, and amplitude and energy. As a person in science, i should know the order of colours in the visible spectrum and the span of visible wavelengths. Question: if light is a .. Answer: max planck proposed that e.m radiation comes in units of defined energy rather than in any arbitrary quantities. Planck called it quantum The Photoelectric Effect Planck’s theories were used to explain a number of observations that had been troubling scientists. Einstein extended…

    • 2460 Words
    • 10 Pages
    Better Essays
  • Powerful Essays

    | Assignment 2 | Guide wavelength measurements | | | Abstract The purpose of this experiment is to demonstrate: a) The techniques for measuring guide wavelength. b) The relationship between the wavelength in free space and the guide wavelength. Furthermore, this experiment will be a way in which to gain experience in using different types of laboratory communications equipment. Introduction What is wavelength? Wavelength of a sinusoidal wave is the distance between identical…

    • 1538 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    Sound

    • 971 Words
    • 4 Pages

    INTRODUCTION Sound is a mechanical wave an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations. Sound is a sequence of waves of pressure which propagates through compressible media such as air or water. (Sound can propagate through solids as well, but there are additional modes of propagation). During their propagation…

    • 971 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Experiment No 2 (Part 2) Single and Double Slit Diffraction Name: Prachi Chaudhary Enrollment number: Btech 2nd year #33 Date: 27th Aug 2012 Observations Wavelength of He-Ne laser is λ = 632.8 nm. Part I: Single Slit Diffraction Distance between single slit and detector is D = .739 m ( 73.9 cm ). |S.No. |Position of detector (cm) |Detector’s reading | |1. |0.021…

    • 280 Words
    • 2 Pages
    Satisfactory 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…

    • 751 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Comparing Wavelengths In The Electromagnetic Spectrum Gamma rays have the smallest wavelength in the electromagnetic spectrum, there is only 0.03 nano meters between the peak of each wave as is shown in this diagram. There is a universal speed that electromagnetic waves travel at which is 300m/s and this means that the wave frequency depends on the wavelength. The wave frequency for gamma rays is 300/0.03=10000hz. Gamma rays are produced by violent events in the universe such as supernovas and…

    • 747 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Sound

    • 497 Words
    • 2 Pages

    S1523 Project Title The Focalization of Sound Abstract Objectives/Goals Scientists have been able to focus sound waves by transmitting an ultrasonic wave in a straight line that can give off audible sound in its path. The only disadvantage to this is the high cost. This project was designed to develop a low-cost process of focusing sound using a parabolic dish and sound-absorbent material. Methods/Materials The project began with the building of a sound box to test different materials in. The box…

    • 497 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    sound

    • 629 Words
    • 3 Pages

    Essay #5 Sound Discuss how at least 5 of the “function” of film sound Operate In Wall*E (time/place, character, attention, feeling, rhythm, subject, theme). Be specific in your response. The sound element narration, dialogue, sound effects and music makes the nonrealistic characters come alive. What we hear gives life to what we see and offers some clues to the meaning. Once we identify the sound on the action we suspect that it is warning for what going to happen litter on the…

    • 629 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Wavelength (l) and Frequency (n) Relationships c=ln , where l is wavelength in meters n is frequency in hertz, 1/s or s-1 c=3.0 x 108m/s (the speed of light in a vacuum) Typical question #1- What is the frequency of red light with a wavelength of 690.nm? (1m=109nm) First- l is wavelength in meters, so convert nm to meters 690.nm ( 1m )=6.90 x 10-7m 109nm Now we can rearrange the equation above and solve for frequency, since…

    • 347 Words
    • 2 Pages
    Satisfactory Essays