Scientific Measurements Units, Precision, and Accuracy

• All measurements consist of two parts.

a. Scalar or unit

• Example
• 5.9 m or 3.7 kg

b. Numerical value

• Example

– 25.0 cm or 1.00 ft

2. Numerical values reflect

• the precision of the instrument used to make the measurement or
• the type of data and measurements collected.
• Qualitative or observations
• Quantitative or precision and accuracy