14 Calculate the mean length from the three trials and record in Data Table 2. 13 Repeat steps 8-12 for two additional trials, recording the lengths as Trial 2 and Trial 3 in Data Table 2. 12 Use the ruler to measure the length of the air column and record as Trial 1 in Data Table 2. 11 Upone resonating, carefully adjust the height of the tube until the loudest sound is produced. 10 While maintaining the position of the tuning fork over the tube, raise the tube to lengthen the air column until you can hear a resonance tone. 9 Immediately place the vibrating tuning fork over the opening of the resonance tube, being careful not to touch the tube with the tuning fork. 8 Grasp the tuning fork by the handle and strike the opposite end against a rigid, unbreakable object such as a piece of wood or rubber shoe sole. See Figure 5.ħ Examine the tuning fork and record the imprinted frequency in Data Table 1. 6 Place the plastic pipe into the pitcher of water to create a resonance tube. Note: If Vernier calipers are present in your lab kit, use the inner jaws of the calipers to measure the pipe instead of the ruler and produce a more accurate measurement. 5 Use the ruler to measure the inside diameter of the plastic pipe and record in Data Table 1. 4 Fill a pitcher or vase with enough room temperature tap water to submerge at least 80% of the length of the pipe. 3 Use the thermometer to measure the temperature of the room and record in Data Table 1. Procedure 1 Gather the safety goggles, plastic pipe, ruler, tuning fork, and thermometer from the lab kit. You will then calculate the speed of sound from experimental data and apply the relationship between velocity, frequency, and wavelength to solve problems. In this exercise, you will construct a resonance tube and use it to measure sound waves.
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