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### 25 Cards in this Set

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