# Determination od Density lab report IB Physics

489 WordsMar 23, 20092 Pages
Vlad Shtefanyuk Year 12, Physics HL Determination of Density lab report Introduction: This experiment is about determining the density of several objects made of the same material. Aim: The aim of this experiment is to determine the density of six objects of the same material but different masses and dimensions by finding out mass and volume. Apparatus: • Balance • Ruler • Vernier Calipers • Micrometer screw gauge • Six objects of the same material Method: 1. Each object’s length, width and height were measured using Vernier Calipers. 2. Each object was weighed using a balance. 3. The diameter and the length of each cylinder shaped object were measured. 4. The reading errors were calculated and written down for each object Results: Objects 1-4: Length /mm ±0.03 mm Width /mm ±0.03 mm Height /mm ±0.03 mm Weight /g ±0.005 g Object 1 30.35 15.00 3.15 11.43 Object 2 30.00 15.00 6.00 22.56 Object 3 60.10 14.95 3.00 22.61 Object 4 59.80 15.00 6.00 45.03 Objects 5 and 6: Length /mm ±0.003 mm Diameter /mm ±0.03 mm Weight /g ±0.005 g Object 5 40.00 15.95 67.94 Object 6 59.10 18.00 116.58 Volume for objects 1-4 were calculated by multiplying length x width x height Table of volumes for objects 1-4: Volume /mm3 Percentage uncertainty Object 1 1400 ± 1.0 % Object 2 2700 ± 0.8 % Object 3 2700 ± 1.0 % Object 4 5400 ± 0.8 % Table of volumes for objects 5 and 6: Volume /mm3 Percentage uncertainty Object 5 2000 ± 0.2 % Object 6 3300 ± 0.2 % Graph processing: As objects 2 and 3 had the same mass and density, I have counted it as one point on the graph. . By calculating the gradient of the graph I have obtained the density of the objects: m = 8.33 gcm-3 Conclusion: By