Unit of Measurement
Is one increment of the system being used
Significant figure (digits)
The certain digits and the uncertain digit together
The digits in the numerical value of a measurement that indicate its precision.
the number of units determined by the act of measuring
significant digits don't apply to these (Ex. half, twice,dozen, 30 students, 10 books, etc)(non-measurements)
A number that indicates quantity and is followed by a unit.
The product of the pure number and the unit of measurement
refers to how close a measurement is to the accepted reference or theoretical value
a number expressed bewteen 1 and 10 multiplied by an exponential factor (10 raised to some power)
10 raised to some power
the agreement between two or more measurements (reproducibility of data)
the power 10 is raised to in scientific notation
Units of measurement that are derived from the basic SI units
AKA dimensional analysis; tool for converting a measured value from one unit to another
a problem-solving tool in which the units of numbers are changedc by being multiplied by a conversion factor equal to 1.
the measure of the amount of matter in a given substance (always constant)
the ratio of two measurements and their units that represent the same quantity (1)
the gravitaional pull exerted on an object (will change based on location)