Chapter 2 Flashcards
What is the science of quantity?
mathematics
What is a mathematical statement that two expressions are equal?
equation
What is the most important part of an equation?
the equal sign
What is the closeness of a measurement to the quantity’s actual value?
accuracy
What refers to how closely several measurements match each other?
precision
What are any of the digits in a measured value that represents the uncertainty of the measurement?
significant digit
What is a form of writing extremely large or small numbers as a number between 1 and 10 and multiplied by a power of ten?
scientific notation
For data to be meaningful, what must it include?
units
What is a collection of compatible, related units that can be used to measure such quantities as length, mass, weight, or volume?
system of measurement
What was one of the earliest units of measurement that was originally based on the length of a person’s arm from the elbow to the tip of the middle finger?
cubit
What is a specific measure to which other measures are compared to ensure uniformity?
standard of measure
What is the system of measurement commonly used in the US today?
F.P.S (Foot-Pound-System) or the US Customary system
What is the system of measurements developed by French scientists in the early 1790s and uses prefixes based on powers of 10?
metric system
What is a modification of the metric system with meticulous defined standards for all units?
SI system
What is 1/100 of a meter?
centimeter
