WVC PHYS222 Winter 2019 Lab #7.docx - Air Column Resonance Max Stevens Luke Corbin ABSTRACT The purpose of this lab is to find how different frequencies

# WVC PHYS222 Winter 2019 Lab #7.docx - Air Column Resonance...

• Lab Report
• 10

This preview shows page 1 - 4 out of 10 pages.

Air Column Resonance Max Stevens Luke Corbin 2/20/2019 ABSTRACT: The purpose of this lab is to find how different frequencies affect how often and at what distance resonance occurs in a tube. It is anticipated that there will be more points of resonance with higher frequencies. INTRODUCTION: Sounds are said to “resonate” when their waveforms overlap. This is also called constructive interference. At these points of resonance, the amplitude of the wave is larger and can be perceived as being louder. If there is only one frequency being played, that frequency will resonate at points where the reflected frequency overlaps with the source. In this experiment a tuning fork is held over a tube filled with water. As water is drained from the tube, the overlapping frequencies are constantly shifted till they align and resonate. This may occur multiple times in the tube depending on the wavelength of the source. The shorter the wavelength the more times they will overlap in the same length of tube.

Subscribe to view the full document.

THEORY: First the formula to find the speed of sound in air using a given temperature is needed: v = 331 Eq. 1 Source: Textbook pg. 511 Where v is the speed of sound and Tc is the temperature of the air in °C. The speed of sound is also equal to: v = λf Eq. 2 Source: Lab Packet Where v is the speed of sound, λ is wavelength, and f is frequency. This is true because frequency is the number of waves that pass by a point in a given amount of time, and wavelength is the length of each of those waves, multiplying the number of waves per unit of time by the length of those waves, gives us the total length of wave that travels past a point in a second, which is speed.
EXPERIMENT: To set up this experiment a tube connected via hose to an overflow tank was filled with water. The height of water in the tube could be manipulated by changing the height of the overflow tank.

Subscribe to view the full document.

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes