Calculation results are provided below the questions

Post by **answerhappygod** » Wed Apr 27, 2022 7:30 am

: Calculation Results Are Provided Below The Questions 1 (29.36 KiB) Viewed 36 times

1. According to your calculations and results, more precise measurement was made by: Mechanical micrometer Vernier caliper Measurement of height 2. According to your calculations, which direct measurement will benefit more from increasing the number of readings (measurements) rather than using instrument with lesser smallest scale value? Neither of measurements o Measurement of width Measurements of both height and width Number of measurements does not influence accuracy of final results.

2.89600 cm 3. Assume you have measured multiple values 28.998, 28.992, 28.982, 28.968, 28.950, 28.928, 28.902, all are in millimeters and obtained by the same instrument, which answer represents a valid final value of the measurements? o 28.9600 cm 2.896 cm o 28.96 cm 2.8960 cm o 2.896004 cm 4. What will your measurement error for height be, if you use Mechanical micrometer instead of Vernier caliper? o It is impossible to do such measurement -0.0032666 [mm] -0.0065332 [mm]

o 156.95152857143 mm 5. You have been given multiple measurements of one physical quantity. All of the measurements are done with the same Vernier caliper as in your lab work. Can the quantity value be estimated from the data, if measurements are 156.99 mm, 156.98 mm, 156.95 mm, 157.03 mm, 156.93 mm, 156.89 mm, 156.89 mm? o 156.95 mm o 156.94 mm o 156.93834333333 mm Not enough of reliable data 6. What is the main source of error for AS, according to your calculations and results? -AS - ASS ο Δd, . Ads ο Δή, ο Δής

Vernier caliper 0 157 רוח 0.05 mm Mechanical micrometer 0 25.45 mm 0.01 mm MEASUREMENTS No Height (mm) Diameter (mm) 1 69.85 10.25 2 2 69.80 10.26 3 69.75 10.27 4 69.80 10.26 5 69.80 10.26 6 69.80 10.27 7 69.85 10.27 8 69.75 10.28 9 69.80 10.28 10 69.80 10.27 11 height 10.26 12 height 10.26

Intermediate results Direct measurements Height havg - 69.80 mm (average value) Sh = 0.010540925 mm (standard error) Ahs = 0.023845230 mm (random error) on = 0.05 mm (device error) Ahg = 0.032666 mm (measurement error) Ah = 0.0404431 mm (height absolute error) Diameter davg = 10.26 mm (average value) sa = 0.003138229 mm (standard error) Ads = 0.006906 mm (random error) 8 = 0.005 mm (device error) Ads = 0.0032666 mm (measurement error) Ad = 0.0076396 mm (diameter absolute error) Indirect measurements Surface area ASH = 1.30349 mm² (partial height error) ASd = 1.9213 mm2 (partial diameter error) =

Main results mm, Z= 0.05794 % h = 69.80 10.266 + 0.0404431 +0.0076396 ds mm, E = 0.07446 % S = 2416.7 + 2.3217 mm², 2 = 0.0961 %