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15 Cards in this Set
- Front
- Back
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base unit
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A defined unit in a system of measurement that is based on an object or event in the physical world
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second
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The base unit for time
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meter
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The base unit for length
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kilogram
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The base unit for mass
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derived unit
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A unit defined by a combination of base units
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liter
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Unit of volume
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density
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The ratio that compares the mass of an object to its volume
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kelvin
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the base unit of temperature
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scientific notation
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Expression of numbers as a multiple of two facotrs: a number between one and ten; and ten raised to a power
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conversion factor
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A ratio of equivalent values used to express the same quantity in different units
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dimensional analysis
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A method of problem solving that focuses on the units to describe matter
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accuracy
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Relates a measured value to an accepted value
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precision
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Refers to how close a series of measurements are
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percent error
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ratio of an error to an accepted value
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significant figure
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All known digits plus one estimated digit
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