2022 IB Diploma Extended Essays

Figure 6 Diagram of speed dial

3.3 Results and Analysis

3.3.1 Data Collection Speed # (calculated in 3.3.2)

Time for 5 periods (±0.01s)

Trial 1

Trial 2

Trial 3

Trial 4

Trial 5

1 2 3 4 5 6

8.59 6.82 5.61 4.50 4.02 3.37

8.98 7.02 5.66 4.47 3.82 3.32

8.89 6.72 5.48 4.67 3.94 3.52

8.75 6.71 5.74 4.55 4.16 3.46

9.06 7.08 5.71 4.72 3.83 3.17

Change in height of liquid (x 10 −2 ±0.001m) Trial 2 Trial 3 Trial 4

Speed # (calculated in 3.3.2)

Trial 1

Trial 5

1 2 3 4 5 6

2.3 2.6 3.0 3.7 4.8 4.9

2.1 2.5 2.8 3.2 4.2 5.3

2.0 2.2 2.8 3.9 4.4 5.1

2.0 2.4 2.8 3.6 4.2 5.0

1.9 2.6 3.1 3.5 4.5 4.9

3.3.2 Data Processing Sample calculation for speed:

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