LAb1

LAb1 Wood Block Lab I) Uncertainty Analysis For each of these measurements the minimum uncertainty was used; that is one half of the smallest division of the instrument used to measure. For the distance of length, width, and height a metre stick was used, which has a smallest division of 0.1 cm, thus the uncertainty chosen was 0.05 cm. This was decided because it is an accurate tool, and the blocks posed no rounded corners, nor any curves, thus measurement was made easy. The mass was taken from an electronic scale accurate to one one-hundredth of a gram. Since the scale poses virtually no problems, in terms of measurement, again the minimum uncertainty was used, in this case 0.005 g. Mass Mass Relative Volume Volume Relative Uncertainty Uncertainty Uncertainty Uncertainty ------------------ ------------------ ------------------ ------------------ ------------------ ------------------ 69.62 0.005 0.0071 97.0 3.9 4.0 18.42 0.005 0.027 25.3 1.5 5.9 156.90 0.005 0.0032 195.7 7.4 3.8 153.36 0.005 0.0033 64.6 3.2 4.9 The volume that was derived from the measurement of length, width, and height, also compounded the uncertainty. This lab, uncertainty, volume, width, uncertainties, thus, relative, measurement, length, height, error, smallest, since, seen, scale, relationship, one, minimum, mass, made, graph, each, division, cm, bars, analysis, accurate, width/width, virtually, vast, tool, therefore, terms, taken, stick, shown