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Chapter 2 CPOScience

QuestionAnswer
measurement A number that includes a unit.
unit A specific quantity that is counted to make a measurement.
meter The basic distance unit for the SI Units system of measurement.
liter The basic unit of volume in the SI Units measuring system.
gram The basic unit of mass in the SI Units measuring system; one-thousandth of a liter.
volume A measurement of how much space is occupied by an object.
matter The substance of all objects; all matter is made of atoms and has mass.
atom A particle of matter.
mass The amount of matter that an object has.
weight A measure of mass and the force of gravity on an object.
system A group of objects and the factors that affect the objects.
variable A factor that affects an object; examples include mass, temperature, speed, and time.
independent variable A variable that is changed in an experiment. The independent variable is sometimes called the manipulated variable.
dependent variable A variable that is affected by the change to the independent variable. The dependent variable is sometimes called the responding variable.
control variable A variable that is held constant in an experiment.
energy A measure of a system’s ability to change.
graph A picture that shows how two variables are related.
milli- 1,000 times smaller
centi- 100 times smaller
kilo- 1,000 times bigger
Created by: mrsanderson
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