Examples Of Data Collection Chart

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Data Collection Chart Control Trial Frequencies (Hz) Wavelengths (mm) (measured form valley to valley) water with complete silence, bag, water, phone, app, measurement tool, speakers, room, volume- -13dB 1 40 70 120 6.5 3 1 water with complete silence, bag, water, phone, app, measurement tool, speakers, room, volume 2 40 70 120 6 2.5 1.6 water with complete silence, bag, water, phone, app, measurement tool, speakers, room, volume 3 40 70 120 8 3 2 water with complete silence, bag, water, phone, app, measurement tool, speakers, room, volume 4 40 70 120 7 2.5 1.3 water with complete silence, bag, water, phone, app, …show more content…

The experiment could be changed to have a more accurate answer if more frequencies were tested. This would give a wider range of frequencies to make absolutely sure that every frequency as it gets lower the wavelength gets longer. This experiment answered my primary question with specific and meaningful data. The scientific principles that can be learned from this experiment is that as frequency goes lower the wavelength gets longer. Another scientific fact that can be learned from doing this experiment is that sound waves are caused by vibrations moving through substances' in this experiment that substance was water. Another scientific fact that can be learned is that sound moves through water very well. What other substances can sound move through well? Conclusion The data supports the hypothesis "If the frequency of a sound increases, then the wavelengths of a sound will decrease, because the wavelength is the speed of sound divided by the frequency." The experiment supported the hypothesis because the experiment showed that the relationship between wavelengths and frequencies is as hypothesized. In all cases, as frequency increased the wavelength decreased. When the speed of sound is divided by the frequency the calculated wavelength was not equal to the measured wavelength. This difference is because standing waves were used for measurements and standing waves do not have the same constant as the