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physics ch 2 vocab
definition | term |
---|---|
a measurable property of an object or system | Dimension |
one of the fundamental dimensions of Creation; a three-dimensional volume in which matter and energy may be found and in which events take place | Space |
a nonphysical continuum that orders the sequence of events and phenomena | Time |
any created substance that occupies volume and has mass; one of the three fundamental dimensions of Creation | Matter |
the quantity of matter in an object; the measure of an object’s inertia; Unit is the kilogram | Mass |
any unit that may be expressed as a combination of fundamental or derived SI units | Derived unit |
an assessment of how close a measurement is to the accepted or known value | Accuracy |
the difference between a measured value and the actual or accepted value | Error |
the number of significant decimal places a measuring instrument can yield; the repeatability of a certain measurement within specified tolerances | Precision |
the approximate value of a numerical quantity expressed to the nearest power of 10; a ratio of two values expressed to the nearest power of 10 | Order of magnitude |