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13 Cards in this Set
- Front
- Back
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Qualitative Measurements
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give results in descriptive, nonnumreical form
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Quantitative Measurements
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give results in a definite form, usually as numbers and units
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Scientific Notation
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a number written as the product of two numbers: a coefficient and 10 raised to a power
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Accurary
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a measure of how close a measurement comes to the actual or true value of whatever is measured
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Precision
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a measure of how close a series of measurement depends on more than one measurement
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Accepted value
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the correct value based on reliable references
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Experiment Value
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the value measured in the lab
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Error
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the difference between the accepted value and th experimental value
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Percent Error
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the absolute value of the error divided by the accepted value, multiplied by 100%
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Significant Digits
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the result of a mathematical operation can never be more precise measurement
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International System of Units (SI)
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revised version of metric system
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Weight
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a force that measures the pull on a given mass by gravity
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Density
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the ratio of the mass of an object to its volume (d=m/v)
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