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Physics 1210L (In-person lab) Name: Vanessa Munoz Date experiment performed: February 2,2022 Course and Section: PHY1210L.05 Making Measurements and Making Comparisons: Data Follow the directions in the P ROCEDURE section of the experiment in the lab manual and the instructions on this sheet. Always check the board in the lab room to see if the lab instructor has any additional instructions, modifications, deletions, or hints. Equipment Usage Check Measure the diameter of the copper cylinder using the ruler, the dial caliper, and the micrometer. Your results should be similar to each other, but show increasing precision. If your measurement with a more precise instrument shows a smaller value, or a value that is quite different from the others, see the instructor right away! Table 0: Diameter of copper cylinder using different instruments Instrument Raw data for diameter, d units metric ruler 1.2 cm dial caliper 12.6 mm micrometer 12.66 mm Experimental Data (Part A): Making Basic Comparisons (Procedure Steps A-1 and A-2): Copper cylinder only Use the V ISUAL U NCERTAINTY M ETHOD to estimate the uncertainty in the length (dial caliper). Step 1: Smallest increment for dial caliper: 0.1mm Step 2: Visual limitation for dial calipers (in words): a whole of the smallest spacing Step 3: Uncertainty = (1)(0.1 mm)=0.1mm Step 4: Length (best estimate) = 50.1 Use the V ISUAL U NCERTAINTY M ETHOD to estimate the uncertainty in the diameter (micrometer). Step 1: Smallest increment for micrometer: 0.01 mm Step 2: Visual limitation for micrometer (in words): the whole of the smallest increment Step 3: Uncertainty = (1)(0.01mm)=0.01mm Step 4: Diameter (best estimate) = 12.66

Use the V ISUAL R ANGE U NCERTAINTY M ETHOD to estimate the uncertainty in the mass. Step 1: Smallest increment for mass balance: 0.1 g Step 2: Visual limitation for mass balance (in words): ½ the smallest unit Step 3: Precision to read mass balance: 5.9 Step 4: Smallest mass that appears “balanced”, min = 55.60 Largest mass that appears “balanced”, max = 55.90 Cal Poly Pomona short experiment version Update: 01/20/22 Physics 1210L (In-person lab) Step 5: Uncertainty = [max – min]/2 = 55.90-55.60 /2=0.15 Step 6: Mass (best estimate) = [max + min]/2 = 55.90+55.60/2=55.75 Table 1: Experimental values for the physical dimensions of a copper cylinder Object Mass, m (g) Diameter, d (mm) Length, l (mm) Copper Cylinder 55.75± 0.15 12.66± 0.01 50.0±0.1 Experimental Data (Part B): Comparing a Series of Measurements (Procedure Steps B-1 to B-3): As written. Use the R EPEATABLE R ANGE U NCERTAINTY M ETHOD to determine the sample uncertainty. Step 1: Smallest decimal place of stopwatch: hundreths of a second Step 2: Visual limitation for stopwatch (in words): None – digital instrument . Step 3: Instrumental uncertainty of the stopwatch: 0.01s “one” of the smallest decimal place Step 4: Repeat the measurement for a total of six trials for each lab partner Raw data for period of 10 heartbeats, t (s) Lab Partner A 6.12 6.81 7.41 7.26 7.31 7.92 Lab Partner B 7.71 8.15 7.15 7.2 8.06 8.86 Note: Step 5 (uncertainty) and Step 6 (best estimate) of the Repeatable Range Uncertainty Method are continued on the Analysis assignment because it is explicitly outlined in the lab manual Procedure for this experiment, and thus, will be part of the Analysis assignment grade for this experiment. Normally, all of the steps for a measurement uncertainty method are