This lab experiment was conducted in order to test the speed of sound, which is the distance traveled per unit time by a sound wave. This experiment was carried out with a certain setup, which involved materials such as a computer, a Logger Pro, a vernier microphone, two tubes, a temperature probe, a meter stick, and a dog trainer clicker. These materials were set up in a specific fashion, the Logger Pro was connected to the computer, which allowed for a temperature reading. The microphone was then connected to the lab interface and the two tubes were taped together from one end. One end of the tube was then placed against a wall, the microphone positioned near the open end of the tube as the dog clicker was pressed. Once the clicker was pressed, the speed of the sound traveling through the tube was collected by the microphone, the data then was inputted into the computer by the Logger Pro. Within the first experiment, certain observations were made by the group. Such as how the speed of sound traveling through the tube within all ten trials came out to be an identical 0.0036, except once, when the speed was measured as 0.0037. Even so, the differing speed was only 0.0001 off from the other measurements. Which allowed for the average time for the
First off, the speed of sound traveling through the tube came out to be identical within all ten trials but one. However, this time around the identical results were measured at .0037, whereas the differing result was .0038. Even so, like the first experiment, the differing speed was only .0001 off from the other measurements. Therefore, allowing the average speed of sound traveling through the tube to come out to be .00371. Observing the results from both experiments revealed that, if the distance remains constant, then so does the speed of
Results: The experiments required the starting, ending, and total times of each run number. To keep the units for time similar, seconds were used. An example of how to convert minutes to seconds is: 2 "minutes" x "60 seconds" /"1 minute" ="120" "seconds" (+ number of seconds past the minute mark)
... Association, if a the sound of a plane taking off is 1,000,000,000,000 times the threshold sound, and if the sound of a hand drill is 10,000,000,000 times the threshold sound, during which sound would you wear hearing protection?
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
We then put the stopwatch on and left them for half an hour. After we weighed each potato tube and recorded our results. We did the experiment twice. We did this to make sure our results were correct. Preliminary method: We did everything the same as in our other experiment except we
Through this lab we were to discover the relationships of time, distance, and acceleration at constant velocity.
A transducer is a mechanism that changes one form of energy to another form. A toaster is a transducer that turns electricity into heat; a loudspeaker is a transducer that changes electricity into sound. Likewise, an ultrasound transducer changes electricity voltage into ultrasound waves, and vice versa. This is possible because of the principle of piezoelectricity, which states that some materials (ceramics, quartz, and others) produce a voltage when deformed by an applied pressure. Conversely, piezoelectricity also results in production of a pressure whe...
Aim: - the aim of this experiment is to show the effect on the rate of
Could you hear the ruler tap the table the first time? Yes, I could hear the ruler tap the table the first time.
It is acknowledged that all materials permit sound energy to pass through, it depends on the material and frequency of sound.”Transmission Loss” is the attenuation of sound passing through a material. For acoustical purposes , the materials used for barrier between noise source and noise receiver as long as it has a TL of at least 10dB greater than the desire noise reduction. It ensures that the only nise path to be considered in acousti...
In the experiment we have a time taker, tapper, and 3 observers. The tank should have a black line straight down the middle of it, however, if the 10 gallon tank does not already have a line down the central part of the tank, take a sharpie and draw one exactly down the middle. Once you acquire the tank make sure there are 8 fish in the tank, if not, position 8 fish in the tank. The first trial that was done required the tapper and the time taker with 3 observers. The tapping began for 10 seconds while the fish behavior was observed by the 3 of us observers. After the 10 seconds the results were verified and discussed among the observers. There was an elimination period for 1 minute, and trial 1 was repeated again for the second time making it trail 2 for 20 seconds. The results were documented once again and discussed. The second trail that was done required a little more focus to assure the tapping and placement was the same as the one before. After 20 seconds the results were recorded. There was a rest period for 1 minutes, and trial 2 was repeated making it trial 3 for 30 seconds. The results were
2013. The. Recording Manual - Construction. [online] Available at: http://www.johnlsayers.com/Recmanual/Titles/Acoustics3.htm [Accessed: 25 Nov 2013].
Possibly the largest source of error is in the structure of spinning mechanism. It is likely that the materials used to build the spinner, namely plastic and a small motor, lose accuracy and consistency at high speeds, shaking due to slight imbalances between the sound emitter and the counter weight. This could cause unexpected fluctuations in the frequency of the sound received by the microphone. Additionally, even though the angular velocity was carefully measured by hand with a stopwatch, there is a slight difference between the recorded rpm of the rotating platform and the actual rpm of the platform. The relatively small radius of the path of the sound emitter limited the range of the experiment. A larger radius might have yielded a larger range of data points, due to the greater velocity resulting from the longer circumference that the sound emitter must travel per revolution. With the current setup however, fluctuations in volume are insignificant due to the small change in distance between the sound emitter and the microphone. An improved version of this lab would include stronger and lighter materials as well as a lighter sound emitter to minimize the shaking of the set up at high rpm rates. A smarter motor, which detects, selects, and maintains its own rpm would be more consistent
Write a summary about the results that you got from this experiment. You will notice that the results are not the same, there is a slight difference.
Produced sound from speakers has become so common and integrated in our daily lives it is often taken for granted. Living with inventions such as televisions, phones and radios, chances are you rarely ever have days with nothing but natural sounds. Yet, few people know the physics involved in the technology that allows us to listen to music in our living room although the band is miles away. This article will investigate and explain the physics and mechanism behind loudspeakers – both electromagnetic and electrostatic.
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.