Field Size (cm × cm)

Depth in water(cm)

Timer error, τ (s)

5 × 5

5

1.19

10

1.20

10 × 10

5

1.17

10

1.20

15 × 15

5

1.19

10

1.19

20 × 20

5

1.20

10

1.20

25 × 25

5

1.22

10

1.21

30 × 30

5

1.20

10

1.20

35 × 35

5

1.22

10

1.21

Mean

1.20

Standard Deviation

0.01

Standard Deviation from mean

0.03