PHY
Resonance in air column

Resonance in air column - LAB REPORT EXPERIMENT#4 RESONANCE...

• Notes
• 5
• 100% (11) 11 out of 11 people found this document helpful

This preview shows pages 1–5. Sign up to view the full content.

LAB REPORT EXPERIMENT #4 RESONANCE OF AN AIR COLUMN DATE PERFORMED: APRIL 29, 2007 DAEJIN (BRYAN) KIM LAB PARTNER: ALFONSO HERMANDEZ

This preview has intentionally blurred sections. Sign up to view the full version.

Procedure: In this lab experiment we investigate the speed of sound by observing the resonances of sound wves in a column of air. We are given an air column with a single frequency so that one mode of oscillation is excited. In a real instrument, the air column is presented with a rich sound containing many frequencies so that several modes are excited at once. Data: Antinode 288Hz 320Hz 384Hz 480Hz 512Hz 341.3H z 426.7H z Position s X1 (m) 0.275 0.155 0.0 0.162 0.091 0.076 0.275 X2 (m) 0.825 0.684 0.405 0.526 0.423 0.583 0.654 X3 (m) 0.846 0.886 0.754 X4 (m) Xave (m) 0.55 0.529 0.423 0.362 0.331 5 0.507 0.379 λ (m) 1.19 1.08 0.896 0.717 0.672 1.014 0.758 T(sec) = 1/f 0.003 5 0.003 1 0.002 6 0.002 1 0.001 9 0.0029 0.0022
λ vs. T 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 T (sec) λ (m) Slope = speed of sound = 338 m/s Speed of sound in the room (calculated) 334 m/s

This preview has intentionally blurred sections. Sign up to view the full version.

Calculations: 1. First, we need to convert everything to the SI units for the lab. 2. We need to find our speed of sound so in order to do so we need the temperature on the day the lab was performed. We plug that into our equation, v= 331.4m/s + (0.6 m/s ‘C) (21 ‘C)
This is the end of the preview. Sign up to access the rest of the document.
• Spring '07
• Johnson
• Frequency, Standing wave, Resonator

{[ snackBarMessage ]}

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