Precision of measurement
What Precision of measurement means in Chemistry A-Level, as defined for OCR.
Definitions of Precision of measurement
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
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Reference: OCR
Significant figures communicate how precisely a measured or calculated value is known, and recorded data limit the precision of any derived result.
Indicator-based charts give approximate values while meters and probes give more precise readings.
Topics that use Precision of measurement
- Analysis (OCR A-Level)
- Use of apparatus and techniques (OCR A-Level)
Related terms
- Calculating and interpreting the titre
- Cation tests with sodium hydroxide
- Choice of scale
- Clock reaction
- Collecting data over time to determine rate
- Condenser water flow and safety
- Consistent unit conversion
- Continuous monitoring method
Using Precision of measurement in the exam
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