Period of oscillation The time for 10 full oscillations was measured with a 200gr mass attached to the oscillating ruler. Therefore m - 200gr. This process was repeated six times and the six values that were collected can be seen in Table 2. The reading uncertainty of the stopwatch is not relevant here since the uncer- tainty will be determined by statistical analysis (automatically done by the spreadsheet ). Trial # 'Time for 10 oscillations (s) 10.13 2 10.06 3 9.51 4 10.03 5 9.36 6 9.88 Table 2: Six measurements of the time it takes for the oscillating ruler to complete ten full oscillations with a 200gr mass. The procedure described above was repeated but with no mass attached to the oscillating ruler. The results can be seen in Table 3. Trial # Time for 10 oscillations (s) 4.06 2 5.32 3 4.91 5.08 15 5.26 Table 3: Six measurements of the time it takes for the oscillating ruler to complete ten full oscillations with no mass attached to it