The main uncertainty in the results comes from estimating the length of the resonant tube with respect to the position of the resonant fork. A standingwave is produced when the alternatecompressions and rarefactions of thesound wave down the tubing arereflected at the tubing¶s closed end intothe opposite direction therefore creatingthe propagation of waves in the Stay logged in Physics Forums - The Fusion of Science and Community Forums > Physics > General Physics > Menu Forums Featured Threads Recent Posts Unanswered Threads Videos Search Media New Sources Of Error: closed air column Jun 8, 2011 #1 n3w ton I did an experiment in class to determine the speed of sound. navigate to this website
The experiment could be affected by other sounds around the room and outside the room. Factors can be introduced, and the corresponding speed change more easily understood. We timed for 5 periods and divided the time by 5 to get the time for one period. The percent difference between the wavelengths we solved for was also very small - 6.73%.
On a more serious note: Did you apply end correction? (mouth correction, effective length) http://www.fonema.se/mouthcorr/mouthcorr.htm maimonides, Jun 9, 2011 Jun 9, 2011 #13 Andy Resnick Science Advisor Education Advisor Insights This would have influenced the harmonic number at each given frequency, so the results would have been significantly varied. 3. Share this thread via Reddit, Google+, Twitter, or Facebook Have something to add? The percent error in the exponent in the frequency vs.
DaveC426913, Jun 8, 2011 Jun 8, 2011 #4 n3w ton yes the teacher said these results are fine, now I need to find a possible source of error that may have This error could be avoided by taking care when reading data and recording it and also taking care when drawing the graph. Hence the longest wavelength of the sound in the tube can be $\lambda =4(0.35+0.3*0.053) =1.464 m$. Tuning Fork Lab Sources Of Error You can only upload videos smaller than 600MB.
Was part of your setup in relativisitic motion during the experiment? Speed Of Sound Error Analysis by AnonymousOutlines of a Mechanical Theory of StormsContaining the True Law of Lunar Influence by Bassnett, T. Flight Centrifuge Electron in classical EM theory Falling Cat Electron position in H atom Empty Sphere field and potential 1D two particles system (Lagrangian) Copyright 2012-2016 @ Show My Homework Theme What does this have to do with making music?This is how woodwinds work, the different finger positions cause the tube to become a different length, changing the wavelengths and frequencies.
They come from the position of the resonant fork on the top of the tube (it must be centered and not touch the top of the tube, but not too high) Speed Of Sound Lab Conclusion Fill a tall water glass with water. 3. If the temperature were to increase, the velocity would have increased and so would the wavelength.Draw a figure showing the fifth resonance in a tube closed at one end. Also Please give me a possible source of error for this lab, (no human erros please THANKS!
We found that the percent difference between these values is 1.88%, so therefore, we got a very low percent error, although we still did get some. guest Join | Help | Sign In HonorsPhysicsRocks Home guest| Join | Help | Sign In Wiki Home Recent Changes Pages and Files Members HonorsPhysicsRocks Home Group Lab Reports HP Midterm Sources Of Error In Resonance Tube Experiment Trending I'll try again. Resonance Lab Sources Of Error The wavelength of sound is given by $\lambda = 4(L + 0.3d)$. 10.
The tube ends past the antinode of the wave because of the diameter, so it has to be accounted for in calculations.Suppose that the temperature had been 10 ˚C higher than http://phabletkeyboards.com/of-error/source-of-error.php This was compensated for by running the experiment from both ends and averaging. Due to budget cutbacks, all of our meter sticks were shortened 15%.... That results in a potential error of +/- 1/40, or +/- 2.5 %.Clap location. Resonance In Closed Air Columns Lab Sources Of Error
The smart thing to do at this point is identify the *largest* sources of uncertainties and go down the list. In addition, sound is heard different at every position, which could also mess up the person's perception of a maximum. Was part of your setup in relativisitic motion during the experiment? http://phabletkeyboards.com/of-error/source-of-error-in-a-lab.php Calculate the tension T that would be required to produce the n = 1 standing wave for the red braided string. - 2.
Source engine hl2.exe error help!? Standing Waves Lab Sources Of Error You can only upload a photo or a video. hypothesis: The relationship between frequency and tension of transverse waves traveling in a stretched string would be a power fit, so it increases by a power.
Also, we did three trials of 5 periods to make our times even more accurate. 3. Military ManualsOn Light and Other High Frequency PhenomenaHigh Frequency Strength Training; Guidelines for Making it WorkHow to Make a NoiseHigh Frequency Oscillators for Electro-Therapeutic and Other PurposesThe Illustrated TeslaPassive RF and A resonance frequency exists when a system is driven by its natural frequency.Pendulums and swings demonstrate only one natural frequency (Spalding, 2010, pp. 3-15).Conversely, a column of air can demonstrate several Speed Of Sound Resonance Tube Lab Conclusion If you don't care too much about precision, it's pretty simple.Test Equipment Used1 acoustic impulse generator (er, that'sa pair of hands, actually, struck forcefully together).1 "Phone Mate" answering machine microphone, saved
When a tuning fork possesses the same natural frequency as the air column, thevibrations from the tuning fork will push the air particles at a frequency that will cause the air column Error throughout this experiment could have derived from our lack of exact instruments. The estimate errors on the measured speed of the sound are between 0.25% and 1.25% which show that the method presented above to measure the speed of sound is quite accurate. http://phabletkeyboards.com/of-error/source-of-error-in-gc.php We did this until we found the 2nd and 3rd resonant length.
When atuning fork is placed over the openregion of the tube, a disturbance iscreated by the alternative compressionsproduced by the sound wave. There could therefore have been inaccuracy of as much as +/- 1/2 inch in the center of each microphone, or +/- 1 inch total. In both cases we measured the time from the peak of the first "hump" in the wave form at the leading microphone, to the time at the peak of the first The frequency of the oscillator was changed to vary the number of nodes in the standing wave with the mass kept constant.
We also were forced to use the stopwatch, which could have been slightly off considering that it didn’t have a motion detector attached that could send signals to stop it, and A–5 m/s2 B.+5 m/s2 C–25 m/s2 D.+25 m/s2? We did try to avoid error here though by making our period 5 oscillations, although some error should still be accounted for. The times, as seen on the screen (labeled "Delta" in the screen shots) were 2.960 and 2.820 mS, respectively; averaging them we obtain 2.89 mSec.Our separation was 1.016 meters, which leads
How did you determine that the speed of sounds in your air was 329 m/s? THEORY A sound wave can be created when atuning fork is held over an open portionof a tube similar in respect to how soundis created when a person blows air into Hypothesis: Both of the spring constants that we find should be the same. No, create an account now.