2 ---The Universal Language of Measurement--- The Metric System---The Universal Language of Measurement---Metric System – scientists & engineers use this language to communicateThe metric system is often referred to as the International System of Units (abbreviated “SI”)The metric system is based on the number 10 and multiples of 10.
3 Length The distance between two points Meter – the basic unit of length in the metric system1 meter = 1 mCentimeter – one hundredth of a meter1 cm = 1/100 m = 0.01 m100 cm = 1 mMillimeter – one thousandth of a meter1 mm = 1/1000 m = m = 1/10 cm = 0.1 cm1000 mm = 1mKilometer – one thousand meters1 km = 1000m1 m = 1/1000 kmLight year –the distance light travels in one yearSpeed of light = 300,000 km/s
4 Volume The amount of space an object takes up Liter – is the basic unit of volume in the metric system1 Liter = 1 LMilliliter – is one thousandth of a Liter1 mL = 1/1000 L = LMilliliters and Liters are used to measure the volume ofCubic centimeters – is the metric unit used to measure the volume ofA cubic centimeter is equal to the volume of a cube that measures 1 cm by 1 cm by 1 cm (cm3).A volume of a cubic centimeter (cm3) is exactly equal to the volume of one milliliter.liquidssolids1cm= 1 cm3 = 1 mL1cm1cm
5 Mass a measure of the amount of matter in an object Kilogram – the basic unit of mass in the metric system1 kg = 1000 gramsGram – one thousandth of a kilogram1 g = 1/1000 kg = kg1000 g = 1 kgMilligram – one thousandth of a gram1 mg = 1/1000 g = g1000 mg = 1 g
6 Temperature a measure of how hot or cold something is Celsius = a unit of temperature in the metric systemWater freezes at 0° C.Water boils at 100° C.Normal body temperature is 37° CRoom temperature is 21° C.
7 Temperature (continued) Kelvin = another unit of temperature in the metric system.The lowest possible temperature is Kelvin (-273 ° C). This is Absolute Zero.To convert from Celsius to Kelvin:K = C + 273°
8 Metric Prefixes Prefix Symbol Meaning kilo- k 1000 thousand hecto- h hundreddeka-da10tendeci-d0.1tenthcenti-c0.01hundredthmilli-m0.001thousandth
9 King Henry Doesn’t Usually Dig Converting Metrics kilohectdecaUnitdecicentimilliWhen moving right on the chart, move the decimal to the rightso:3.54 kilometers = 3540 meters1437 mm = ______ m decimeters = ____ mm10 cm = _____ mm