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SS-Chemistry: GOB 2

Physical quantity A physical property that can be measured.
Unit A defined quantity used as a standard of measurement.
SI units Units measurement defined by the International System of Units.
Mass A measure of the amount of matter in an object.
Weight A measure of the gravitational force that the earth or other large body exerts on an object.
Significant figures The number of meaningful digits used to express a value.
Scientific notation A number expressed as the product of a number between 1 and 10, times the number 10 raised to a power.
Factor-label method A problem-solving procedure in which equations are set up so that unwanted units cancel and only the desired units remain.
Conversion factor An expression of the numerical relationship between two units.
Temperature The measure of how hot or cold an object is.
Energy The capacity to do work or supply heat.
Specific heat The amount of heat that will raise the temperature of 1 g of a substance by 1 degree Celsius.
Density The physical property that relates the mass of an object to its volume
Specific gravity The density of a substance divided by the density of water at the same temperature.
Created by: opentoinput