Chapter 3 Lessons 1 and 2 Vocabulary Quiz

Measure of the force of gravity acting on an object. • weight

A way to determine how accurate an experimental value is. • percent error

Numerical average of a set of data. • mean

The middle number in a set of data. • median

Number that appears most often in a list of numbers. • mode

The difference between the greatest value and the least value in a set of numbers. • range

Curved upper surface of a liquid in a column of liquid. • meniscus

System of units used by scientists to measure the properties of matter(another name for the metric system). • SI (International System of Units)

How close a measurement is to the true or accepted value. • accuracy

Amount of space an object or substance takes up. • volume

Data that do not fit with the rest of the data set. • anomalous data

Measurement system based on the number 10. • metric system

Include all digits measured exactly, plus one estimated value. • significant figures

Approximation of a number based on reasonable assumptions. • estimate

Measure of how much mass is contained in a given volume. • density

Measure of the amount of matter in an object. • mass

How close a group of measurements are to each other. • precision