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Friday, March 15, 2019

physics lab speed of sound in air :: essays research papers

Physics Waves research laboratory SLIntroductionThis lab will investigate the properties of mechanical waves much(prenominal) as a longitudinal wave, focusing on the question Does a throw in the frequency of a wave result in a significant and convincing change in the facilitate of the wave?theory Changing the frequency of the wave will not result in a change in speed because the wavelength will change proportionately as in theory. Student Designed InvestigationProcedure/ preparationProcedure1. trine school-age childs would get into a group.2.A Slinky would be deal along a table or along the floor and restrict up as it shows on the diagram above for about 4 meters.1.For proper data, the length of the floor was measured and marked with a tape.2.A student would make sm completely waves, bit another would duration it with a stopwatch until it reaches the other side. This step would be repeated, however the wave would be bigger or smaller, in order to find out if changing the frequency, the speed would change.3.With the data recoded for many different waves, the velocity would be compared for all of them.Materials1.Slinky2.Role-up meter stick3.Stopwatch4.Tape5.Pen/Pencil6.Three Lab partnersProposal (diagram) of each examTrial 1 Trial 2Trial 3Trial 4 Trial 5PlanningAccording to theory, as frequency changes, the wavelength will change proportionately therefore, speed will remain the same. By following the procedure that our student design recommends, it will successfully control the variables that should not be changed, such as the slinky, its stretch distance, and the temperature, in order to prove the theory above. The freelancer variable would be the frequency of the wave, which would change in every trial, opus the dependent would be time, which would later be used to find the speed of the traveling wave. In order to collect data, two students would hold the slinky while on would make waves, and a third person would measure the time. A table similar to this should be done after collecting dataTrialFrequencyTimeSpeed.1An estimation of the number of waves everywhere time.The time it took for the first wave to reach the end.Speed=distance/time2(more trials) 5 recommendedDataDataData CalculationsThe student should cope with the table above, and compare the results. After collection the speed of each wave, a graph should be drawn where the y axis is the speed, and the x axis should be the frequency. Uncertainty The uncertainty of this lab would be based on the timing of the student, and the distance that was measured for the slinky.

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