(1.2) - Limitation of physical measurements Flashcards
1
Q
Accuracy
A
- Closeness of measurements to the true value
2
Q
Precision
A
- The ability to take mulitple readings with an instrument that are close together
3
Q
Repeatability
A
- Original experimenter repeats the investigation using the same method and equipment and obtaining the same results
4
Q
Reproducibility
A
- An investigation is repeated by someone else (can be the same or different equipment and or techniques), and obtaining the same results
5
Q
How to reduce random error
A
take repeats of an experiment
6
Q
Random error
A
Unpredictable variations in measurements caused by factors that vary in an uncontrolled way.
6
Q
Systematic errors
A
Consistent, repeatable biases in measurements caused by flaws in the measurement system or method
