Measurement Systems

Due to its convenience and versatility, the International Systems of Units (SI) is the standard amongst scientists internationally. In this topic, you explored how to convert easily between SI units because most units use the same prefixes, and conversions are made by simply moving the decimal place. In order to properly read digits from a measuring device, it is necessary to use all certain digits and add an uncertain digit to the end of the measurement. Maintaining accuracy and precision in measurement is important. Ultimately, you should keep in mind that there is no such thing as a perfect measurement. All measurements have a degree of uncertainty due to the limitations of the measuring device and inconsistencies in the person doing the measuring.