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25 Cards in this Set
- Front
- Back
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Absolute Zero
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The zero point on the Kelvin temperature scale, equivalent to
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Accepted Value
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A quantity used by general agreemnt of the scientific community
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Accuracy
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The closeness of a measurement to the true value of what is being measured
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Calorie
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The quantity of heat needed to raise the temperature of 1g of pure water 1 C
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Celsius scale
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The temperature scale on which the freezing point of water is 0 C and the boiling point is 100 C
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Conversion factor
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A ratio of equivalent measurements used to convert to quantity from one unit to another
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Density
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The ratio of the mass of an object to its volume
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Dimensional Analysis
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A technique of problem-solving that uses the units that are part of a measurement to help solve the problem
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Energy
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The capacity for doing work or producing heat
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Error
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The difference between the accepted value and the experimental value
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Experimental Value
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A quantitive value measured during an experiment
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Gram
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A metric mass unit equal to the mass of 1 cm3 of water at 4 C
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International System of Units
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The revised version of the metric system, adopted by international agreement in 1960
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Joule
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The SI unit of energy: 4.184 J equal one calorie
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Kelvin scale
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The temperature scale in which the freezing point of water is 273K and the boiling point is 373K; 0K is absolute zero
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Kilogram
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The mass of 1 L of water at 4 C; it is the base unit of mass in SI
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Liter
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The volume of a cube measuring 10 centimeters on each edge (1000 cm3); it is the common unprefixed unit of volume in the metric system
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Measurement
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A quantitive description that includes both a number and a unit
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Meter
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The base unit of length in SI
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Percent Error
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The percent that a measured value differs from the accepted value
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Precision
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Describes the closeness, or reproducibility, of a set of measurement taken under the same conditions
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Scientific Notation
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An expression of numbers in the from m x 10 where m is equal to or greater than 1 and less than 10, and n is an integer
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Significant figures
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All the digits that can be known precisely in a measurement, plus a last estimated digit
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Temperature
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A measure of the average kinetic energy of particles in matter; temperature determines the direction of heat transfer
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Weight
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A force that measures the pull of gravity on a given mass
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