Question

Determining the Speed of Sound Name Abstract; Include instead of these lines the objectives of the lab (what you investigated), the short description of how you did it and the conclusions formulated based on the obtained results. It should be ½ to 1 page long. Picture of the experimental set up Observations Data Table 1: Calculation of sound wavelength Tuning fork frequency f (Hz ) Length, (water level to top of tube) L (m) Diameter of tube, d(m) λ(m) =4(L + 0.3d) Experimental v(m/s) = f λ Room Temperature, oC Calculations A. Calculate the theoretical speed of sound (v): v = 331.4 + 0.6T0C ( m/s) • 331.4 m/s is the speed of sound at 20oC • T0C is the temperature of air during testing measured in Celsius B. Calculate the percent error of your experimentally derived value: C. Describe what is sound. D. Explain the phenomenon based on which you were able to hear the amplified sound and to determine the speed of sound. You should include a picture or a sketch of the standing waves (the key concept you need to write about) inside the tube. Because this might require different printed or electronic resources, make sure you include the references. E. What is the physical concept behind the “pitch” of a sound and what is the SI unit for it? F. What is the physical concept behind “intensity” of a sound and what is the SI unit for it? G. What are possible sources of errors in this experiment?

Answer 1