Experiment 1: Errors, Uncertainties, and Measurements

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Figure 1: Experimental Set-up for Foot Rule

Figure 2: Experimental Set-up for Vernier Caliper[pic 16]

Figure 3: Experimental Set-up for Micrometer Caliper

4. Results and Discussion

Table 1- Foot Rule

Trial

Diameter (cm)

Deviation from mean diameter

1

1.4

.01

2

1.4

.01

3

1.3

.09

4

1.4

.01

5

1.4

.01

6

1.4

.01

7

1.4

.01

8

1.4

.01

9

1.4

.01

10

1.4

.01

Mean Diameter

1.39

Average Deviation (a.d)

0.018

Average Deviation of the Mean (A.D)

0.0006

% Error Diameter

0.4

Volume (cm3)

1.41

Mass (g)

16.26

Experimental Value of Density (g/cm3)

11.53

Accepted Value of Density (g/cm3)

7.874

% Error of Density

46.43

[pic 17]

Table 2- Vernier Caliper

Trial

Diameter (cm)

Deviation from mean diameter

1

1.525

.001

2

1.525

.001

3

1.520

.004

4

1.520

.004

5

1.520

.004

6

1.530

.006

7

1.525

.001

8

1.525

.001

9

1.525

.001

10

1.520

.004

Mean Diameter

1.524

Average Deviation (a.d)

0.002

Average Deviation of the Mean (A.D)

0.006

% Error Diameter

0.04

Volume (cm3)

1.85

Mass (g)

16.26

Experimental Value of Density (g/cm3)

8.79

Accepted Value of Density (g/cm3)

7.874

% Error for Density

11.93

Table 3- Micrometer Caliper

Trial

Diameter (cm)

Deviation from mean diameter

1

1.5800

.003

2

1.5781

.001

3

1.5746

.002

4

1.5764

.003

5

1.5749

.002

6

1.5760

.007