prelab 2 - the object is fully touching the object, making...

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PreLab Two: Measurement and Uncertainty 1. There is uncertainty in every measurement because with the possibility of human error and the precinessof the instrument that you are using, there is always a possibility that measurement can be incorrectly found. It is important that we realize that we always must deal with uncertainty because if we don’t, then our experiments and finding could be incorrectly done. 2. a. Scale Limitation: i. When the instruments limit the preciseness of your measurement. This can be limited by using better instruments for measuring or by using the rule of thumb and giving it a ± percentage so that the reader can see that there is uncertainty in the findings. b. Parallax i. When in multiple testing you find multiple readings that can give you a high variation. Parallax can reduce by making sure that
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Unformatted text preview: the object is fully touching the object, making finding the end point precise and easy. c. Random Error i. Random erroris error that came into the experiment at random. Random error can be eliminated by taking multiple measurement because the more trials, ther better the average. d. Systematic Error i. Error that causes for measurement to be found higher or lower than expected. To eliminate it, you can add or gain the appropriate measurements to make your data correct, however, systematic error is hard to detect so it can be difficult to eliminate from an experiment. 3. The uncertainty found in a measurement like this would be scale limitation, however if this is not an issue in the measurement, the experiment should have little to no uncertainty. 4. 549.552 ± 55.168 cm 2 5. 11 ± .5 cm...
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This note was uploaded on 09/28/2008 for the course PHYS 1212 taught by Professor Zink during the Winter '08 term at Denver.

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