Presentation on theme: "The Metric System, Conversions & Scientific Notation"— Presentation transcript:
1 The Metric System, Conversions & Scientific Notation
2 The Metric SystemThe metric system is an internationally standardized system of units of measurement.The metric system is based on a base unit and prefixes.
3 Prefixes Kilo - 1000 k Hecto - 100 h Deca - 10 da 1 Deci - 0.1 d Centi cMilli m
4 Length The basic unit of length in the metric system is the meter (m) Metric Units of LengthKilometer (km) = 1000 mHectometer (hm) = 100 mDecameter (dam) = 10 mMeter (m) = 1 mDecimeter (dm) = 0.1 mCentimeter (cm) = 0.01 mMillimeter (mm) = m
5 MassWeight is a measure of how strongly gravity is pulling on an object (can change).Mass is the amount of matter an object has (doesn’t change).Note: On Earth, weight and mass are often used interchangeably.
6 Mass The basic unit of mass in the metric system is a gram (g) Metric Units of MassKilogram (kg) = 1000 gHectogram (hg) = 100 gDecagram (dag) = 10 gGram (g) = 1 gDecigram (dg) = 0.1 gCentigram (cg) = 0.01 gMilligram (mg) = g
7 Capacity Metric Units of Capacity Liquid substances are measured in units of capacity.The basic unit of mass in liquids is a liter (L)Metric Units of CapacityKiloliter (kL) = 1000 LHectoliter (hL) = 100 LDecaliter (daL) = 10 LLiter (L) = 1 LDeciliter (dL) = 0.1 LCentiliter (cL) = 0.01 LMilliliter (mL) = L
8 Conversions within the Metric System To convert units within the metric system, write the prefixes in order from largest to smallestk h da d c mTo convert from a smaller unit to a larger unit, move to the leftTo convert from a larger unit to a smaller unit, move to the right
9 Ex: Convert 1600 cm to mkm hm dam m dm cm mmMove 2 places to the left to get from cm to mTherefore, move the decimal point in 1600 two places to the left to convert from cm to m1600 cm = m
10 Ex: Convert 2 kL to L Move 3 places to the right to get from kL to L kL hL daL L dL cL mLMove 3 places to the right to get from kL to LTherefore, move the decimal point in 2 three places to the right to convert from kL to L2 KL = 2000 L
11 Conversions between the U.S. Customary System and the Metric System Units of Mass1 oz g1 lb g2.2 lb kgUnits of Capacity1.06 qt L1 gal LUnits of Length1 in = 2.54 cm3.28 ft m1.09 yd m1 mi km
12 Ex: Convert 130 lbs to kg (round to the nearest whole number)
13 Scientific NotationScientific notation is the way that scientists handle very large numbers or very small numbers.Examples:24327 = x 1040.053 = 5.3 x 10-2