Physics 2048 Lab Report 2a

Physics 2048 Lab Report 2a - Physics 2048 Lab Report Lab 2:...

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Physics 2048 Lab Report Lab 2: Measurements and Instrumentation Date Due: September 16, 2010 Abstract: The differences in parameters of the objects were due to the use of different measuring tools and this can affect the precision and accuracy of the data. Using different methods of measurement, we calculated the dimensions,
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volume and densities of these selected objects while noting the error. One example of one of the modes of measurement was the vernier caliper, which had an error of .005mm. Also in the latter part of the experiment, the experimenters calculated the frequency, which was the number of complete oscillations of the ball as a function of length. The different lengths of the string served as the length function. The trials yielded results that had a g value of 10.01mm. The g value represents the magnitude of the free fall acceleration. Introduction Accuracy is how close a measured value is to the true value and precision is how close the measured values are to each other. In this experiment, the experimenters tested the accuracy and precision of different measuring instruments. Also when recording data, it is always necessary to record the error in units of the measuring device. The error should always be half of the smallest division. For example, in the experiment the pan balance measured the large rectangle to be 42.2 grams and the error was .5 grams because the caliper has an accuracy of 1 gram. For the latter part of the experiment, the experimenters were trying to prove Newton’s second law, which stated that an object will change its velocity if pushed or pulled upon. Theory
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This note was uploaded on 06/05/2011 for the course PHY 101 taught by Professor Johnsmith during the Spring '11 term at FSU.

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Physics 2048 Lab Report 2a - Physics 2048 Lab Report Lab 2:...

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