This experiment was designed in order to see what relationships variables have in regards to a wave. Those variables include temperature, wavelength, frequency, velocity, and medium. This project was designed in order to see what frequencies react with what type of tubes, as well as to see what is required for different harmonics to form. Before starting the lab, I made the prediction that the smaller harmonics like the first harmonic will react with lower frequencies while the third harmonic will react only with higher frequencies. In other words, the higher the frequency, the larger the harmonic. In this particular lab, my group partners and I were testing three separate tubes with five different pitching forks. For the theoretical part …show more content…
In our lab, the independent variable is frequency and out dependent variable is velocity. Also, another dependent variable was length.
In order to begin understanding this lab, it is important to understand what variables play a part in the experiment. I considered doing this experiment in order to gain even a larger perspective of what waves truly are. To start understanding how wavelength, frequency, and velocity work together it is important to know one equation: velocity = frequency x wavelength. Also, it is important to know that in order to see how the speed of sound depends on temperature, it is important to know that at 0 degrees celsius, the speed of sound is at 330m/s. In order to add or subtract degrees, you would add or subtract 0.6 from 330. In regard to harmonics, it is important to see a theme between all. The first harmonic is
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Below is a representation of the equipment and set-up for this
The independent variable was moisture. The dependent variable was the bug’s behavior on which soil the sowbug spent the most time in. The controlled variables were temperature, type of soil, and light intensity.
5. A second test tube was then filled with water and placed in a test
It was proposed that if the length of the PVC pipes were to increase, then the sound produced will have a lower amplitude each time because the sound will lose energy as it continues in the pipe for a certain amount of time. However, the data actually showed that with every increase in pipe length, the amplitude got louder as well, thus refuting the hypothesis. These results made sense because what was created inside the PVC pipes was a standing still sound wave, or a resonance wave. These kinds of waves have certain locations on its wavelength in order for the change in sound to be heard, which it usually half a wavelength. With this, the tuning fork is 83.3Hz and a usual wavelength is about 300Hz, 300/83.3 = 3.6 meters, which is about 4 meters (half = 2 meters). So for the change in sound to be heard, the pipes had to be about 2 meters in change according to the frequency of the tuning
The results of this experiment are shown in the compiled student data in Table 1 below.
In order to further improve the accuracy of the experiment, I will use a sound recorder which has
My hypothesis for this experiment is that the heat study tube will turn blue, the cooling study tube will turn green, the dehydration study tube will turn blue, the hydration study tube will turn green, and the common ion effect study tube will turn blue.
The Helmholtz resonance of a guitar is due to the air at the sound hole oscillating, driven by the springiness of the air inside the body. This is analysed quantitatively in Helmholtz Resonance.
waves were reflected back to the transducer as they crossed interfaces of different acoustic impedance. More simply, the ultrasound bounced off the
In order to produce this experiment, you began by setting up the angles at which the spring gun would launch the metal ball onto the ground to measure its distance. The spring gun was placed, ideally, at table
Sound is (a) the physical transmission of a disorder (energy) in a standard and the physiological response generally to pressure waves in air. However, the sound spectrum has much lower frequencies and is much simpler, with only three frequency regions; the infrasonic region (f<20Hz), the audible region (20Hz20 KHz), (Shipman-Wilson-Higgins, 2013). Depending on the volume of sound can be determined as a low or high frequencies.
Polman, H., Orobio De Castro, B. & Van Aken, M. A.G. (2008). Experimental Study of the
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.
Dependent variables: The extent of the reaction (the time taken for magnesium to completely dissolve in HCL). The volume of hydrogen gas produced.
In this experiment, we attempt to make a musical instrument. My group decided to make a wind instrument, which is an instrument that requires a player to blow in it, in order to have sound. There are some examples of wind instrument like, trumpet, oboe, tuba, etc... In this experiment, we’re going to explain how our wind instrument was made, and how the instrument changes in frequency by blowing in it. For the materials, we used the straw to become our mouthpiece, and with a washing machine pipe to make the sound better, and to become the tube of our instrument. We will test different lengths of the instrument, and measure any difference in frequency, or pitch, between the lengths.
Sound is produced by vibrations in the air which, in this experiment, came from the hammer. The vibrations are a set of frequencies measured in units of Hertz (Hz). The faster the vibration frequency, the higher the sound will be in pitch. Pythagoras’s 2:1 ratio simply means that both tones are the same however the second tone’s frequency rate is doubled. For example, the blacksmith strike...