Physical Science Activities Manual________________________________________________________________________________________________________________________________________________________________________________________________________________________________Center of Excellence for Science and Mathematics Education at The University of Martinof the tube. If a physics book is consulted, you will see that for a open-endedtube that the first resonance point comes at one fourth of the wavelength ofthe resonating column of air. The column of air is vibrating at the samefrequency as the tuning fork.5.With the information that has been gathered have the students figure out firstthe wavelength of the vibrating air column and the speed of sound in air.[The wavelength will depend on the frequency of the tuning fork used. Itshould roughly be 4 times the length determined in #4 above. The speed ofsound can be calculated by using v = fThe accepted value for thespeed of sound in air is 332 m/sec at 0°C. The speed of sound in airincreases by 0.6 m/sec for each °C above zero. If room temperature is around20°C, the speed of sound will be 344 m/sec. There will be some error in thismethod.
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