February 27, 2012

The Different forms of Oscillation




After we have submitted our technical report for the Projectile Motion experiment, we were given another experiment which were consist of 3 different experimental parts. The experiments are to test the harmonic oscillation of an object or a particle. This experiment was kind of difficult for our group because we were the ones to design a set-up to achieve the experimental objectives. Another thing is that, the ways or techniques to be used for finding the periods of oscillations tends to acquire too much human error which makes it difficult to achieve experimental results with low percent error deviation. 



First, let me give you a background of what oscillation is. Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples include a swinging pendulum and AC power. The term vibration is sometimes used more narrowly to mean a mechanical oscillation but sometimes is used to be synonymous with "oscillation". Oscillations occur not only in physical systems but also in biological systems and in human society. 



The three variations of oscillation experimented were from three different set-ups as well. The set-ups were; a spring mass system, a simple pendulum, and a physical pendulum. The overall experiment was successful. We got the needed values and data for the period of each set-up. The only thing is, during the process of the experiment, there were times when we were too noisy with stuff due to the materials used like the weights which keeps on falling. Nevertheless, we were able to finish the 3 experiments. 



Looking forward to more fun experiments and Laboratory activities! :)

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