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Unformatted text preview: Name Matriculation Number Date Lab Partners Group Simple Measurements Part A: Simple Pendulum #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 m (kg) W (N) L (cm) d (cm) T 10 (s) Data Table 1 Demonstrator’s signature Analysis A-1 Determine the period of the simple pendulum (time required for ONE com- plete swing) T for each of your data obtained for T 10 (time taken for TEN complete swings). Calculate the mean, standard deviation from the mean and standard error for each of the five physical quantities measured. Physical Quantity Average Standard Deviation Standard Error Units Mass ( m ) Weight ( W ) Length ( L ) Diameter ( d ) Period ( T ) Physics level 1 laboratory Page 1 of 7 Semester I, 2011/12 PC1221: Simple Measurements – Laboratory Worksheet Page 2 of 7 Question A-1 According to statistical theory, 68% of your measurements of the length of the simple pendulum should fall in the range from L- σ L to L + σ L . About 7 of your 10 measurements should fall in this range. What is the range of these values for your data? How many of your 10 measurements of the length of the simple pendulum fall in this range? State clearly the extend to which your data for the length agree with the theory. What is your evidence for your statement? Question A-2 According to statistical theory, if any measurement of a given quantity has a deviation greater than 3 σ from the mean of that quantity, it is very unlikely that it is statis- tical variation, but rather is more likely to be a mistake. Calculate the value of 3tical variation, but rather is more likely to be a mistake....
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This note was uploaded on 01/09/2012 for the course ELECTRICAL 1221 taught by Professor Tan during the Spring '11 term at National University of Singapore.
- Spring '11