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Significant Figures and Error
When are Significant Figures and Error Covered?
Significant Figures and Error are introduced in ENGR111 during Class 6.1.
*Explaination of Class numbering System
Objectives
| Class 6.1: |
Signifant Figures/Error |
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Learn the differences in: accuracy/percision, random/systematic error, uncertainty/error |
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Compute true, fractional and percent error |
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Use proper number of significant figures to report work |
Class Agenda
| Class 6.1: |
Signifant Figures/Error |
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Lecture Material on error and rules for significant figures |
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A RAT is given early in the class session |
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A paired jigsaw or group activity to summarize Sig Fig and Error handouts |
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Team exercise to determine various types of error |
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Team exercise to determine significant figures for algebraic problems |
Why are Significant Figures and Error Important?
Significant Figures determine how accurate at number is according to the experiment; given data and results. Sig figs are important because they help to determine the validity of a number.
Error is the difference between the reported and actual value and results from a lack of accuracy in significant figures. Can also be defined as the last digit of a number. Error is important because it quantifies the inaccuracy and precision of a certain system.
Links to Class Materials
- Class 6.1 Powerpoint
- Significant Digits
- Error
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