Anorexia And Bulimia Essay

766 WordsFeb 5, 20124 Pages
THINGKING METRIC HISTORY • By the eighteenth century, different units of measurement were commonly used throughout the world. • Length, for example, was measured in feet, inches, miles, spans, cubits, hands, furlongs, palms, rods, etc. • The lack of common standards led to a lot of confusion and anomalies in trade between countries. • At the end of the century, the French government sought to eliminate this problem by devising a system of measurement that could be used throughout the world. HISTORY CONT. • In 1790, the French National Assembly commissioned the Academy of Science to design a simple decimal-based system of units. • The system they devised is known as the metric system. • In 1960, the metric system was officially named Système International d'Unités (SI) and is now used in nearly every country in the world, except the United States. • The metric system is almost always used in scientific measurements. SUMMARY • The metric system, also known as the Système International d'Unités (SI), was developed in the late 1700s to standardize units of measurement in Europe. • The metric system is the primary system of measurement used through much of the world and in science. • Each type of measurement has a base unit to which prefixes are added to indicate multiples of ten. • Three most common base units used in the metric system are the meter, gram, and liter. • Scientific notation is a shorthand for writing very small and very large numbers. OBJECTIVES • To become familiar with the metric system of measurement. • To develop skills in metric measurement of length, volume, mass, and density. • To be able to covert from the English to the metric system and vice versa. PREFIXES MEASUREMENT OF LENGTH • The standard unit of length is the meter (m) • 1m • 1.78 m = = 39.37 inches 178 cm • Note: in the metric system, one unit of measure

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