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Longitudinal Waves Experiment

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Introduction:
A wave is a disturbance in the medium that transfers energy from one place to another, there are two types of waves; longitudinal waves and transverse waves. Longitudinal waves ' are waves that vibrate or travel in the direction of propagation; back and forth. Transverse waves ' are waves where the medium oscillates at right angles to the direction of the propagation; up and down.

Sound waves are categorised as longitudinal waves as they produce oscillations, along with having compressions and rarefactions. The oscillations of the wave cause the medium surrounding it to oscillate along with it, allowing the sound to travel around the area. These waves produce sound which is capable of being deciphered by the human ear. This is because the sound being produced …show more content…

The thickness of a string directly corresponds with the pitch or frequency of said string. The thicker the string, the lower the pitch. In which, as the thickness of a string increases the pitch of the string decreases; as the thickness decreases the pitch increases. The pitch of a string can also be controlled by its length, when the length of the string is increased the pitch of the string decreases, when the length of the string was decreased the pitch increased in correlation.

Aim & Hypothesis:
The aim of the experiment was to create a fair test that investigated the modifications of the thickness of a string instrument and its effect on the frequency of the string instrument.
It was hypothesised that 'if ' the rubber band was thicker , it would generate a low pitched sound, and if the rubber band was thinner it would produce a higher pitched sound. This is due to the thicker rubber band vibrating slower, therefore having a lower frequency then producing a lower pitch. While the thinner rubber band would vibrate faster, producing a higher amount of sound waves, in turn raising the frequency or

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