lab 1 - Bryan Spelhaug Tuesday 8:00am Experiment I...

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Bryan Spelhaug Tuesday 8:00am Experiment I: Measurements and Error Analysis Date: 9/2/10 Objective: Some numerical statements are exact: Today is September 2 nd 2010, or 2+2=4. However, all measurements have some degree of uncertainty or error that may come from a variety of sources (yard stick, balance beam, micrometer, etc.) When we take measurements, we generally assume an exact value exists based on how we define what we are measuring. Because we can never measure an exact value, we attempt to find the ideal quantity to the best of our ability with the resources available. This lab enables us to identify the different degrees of error and with repeated measurements of the given object; we can come to a “best estimate” as to the real value of the object. Method: For this experiment, we measured a sample rod made of copper. In order to find the best estimate for the length, we first used a meter stick and took 10 repeated measurements. We placed the rod (laying on its side) on the lab table. Next, we lined up
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lab 1 - Bryan Spelhaug Tuesday 8:00am Experiment I...

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