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Name Section Date 
Lab Partner(s) 
E X P E R I M E N T 1
Experimental Uncertainty (Error) 
and Data Analysis
 Advance Study Assignment
Read the experiment and answer the following questions.
 1. Do experimental measurements give the true value of a physical quantity? Explain.
 2. Distinguish between random (statistical) error and systematic error. Give an example of 
each.
 3. What is the difference between determinate and indeterminate errors?
 4. What is the difference between measurement accuracy and precision? Explain the general 
dependence of these properties on the various types of errors.
(continued)
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E X P E R I M E N T 1 Advance Study Assignment
 5. What determines how many fi gures are signifi cant in reported measurement values? What 
would be the effect of reporting more or fewer fi gures or digits than are signifi cant?
 6. In expressing experimental error or uncertainty, when should (a) experimental error and 
(b) percent difference be used?
 7. How could the function y 5 3t2 1 4 be plotted on a Cartesian graph to produce a straight 
line? What would be the numerical values of the slope and intercept of the line?