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TAMU PHYS 1401 - Experiment 1: Rulers vs. Calipers

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Experiment 1: Rulers vs. CalipersIn this experiment, you will compare the precision and accuracy measuring the same objects with a ruler and a caliper.Materials1 MarbleRulerString (1) 8 oz. Styrofoam® CupVernier Caliper1 WasherProcedure1. Using the ruler, measure the diameter of the marble. Record your measurement in Table 1. 2. Indicate your uncertainty. Record the uncertainty in Table 1. 3. Repeat Steps 1 and 2 for the outer diameter of the washer, inner diameter of the washer, washer thickness, length of the string and the height of the Styrofoam® cup. 4. Repeat Steps 1 - 3 using a Vernier caliper. Table 1: Ruler and Caliper MeasurementsObjectRuler CaliperMeasurement(cm)Uncertainty(cm)Measurement(cm)Uncertainty(cm)Marble Diameter 1.3 +/- 0.1 1.402 +/- 0.001Washer (Outer Diameter) 1.9 +/- 0.1 1.90 +/- .01Washer (Inner Diameter) 0.80 +/- 0.1 0.80 +/- .01Washer Thickness 0.1 +/- 0.1 0.106 +/- .001String Length 609.6 +/- 0.1 609.6 +/- 0.01© 2014 eScience Labs, LLC.All Rights ReservedStyrofoam® Cup Height 8.9 +/- 0.1 8.9 +/- 0.01Post-Lab Questions1. Compare the measurements for objects using the ruler and caliper and write a general statement on when it is more beneficial to use a ruler rather than a caliper.2. Comment on accuracy vs. precision for rulers and calipers.3. What are the sources of uncertainty when using a ruler and caliper?© 2014 eScience Labs, LLC.All Rights


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TAMU PHYS 1401 - Experiment 1: Rulers vs. Calipers

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