# Metrics UMI July 14, 2015 Commonly used metric Metrics UMI July 14, 2015 Commonly used metric system units and symbol Quantity measured Length, width, distance, thickness, girth, etc. Mass (weight)* Unit Symbol millimeter mm 10 mm = 1 cm centimeter cm 100 cm

= 1m meter m kilometer km 1 km = 1000 m milligram mg 1000 mg = 1g gram

g kilogram kg 1 kg = 1000 g 1t = 1000 kg metric ton t Time second s Temperature

degree Celsius C Area square meter m hectare ha square kilometer km milliliter mL cubic centimeter cm liter L

cubic meter m meter per second m/s kilometer per hour km/h Density kilogram per cubic meter kg/m Force newton N Pressure, stress kilopascal

kPa Power watt W kilowatt kW kilojoule kJ megajoule MJ kilowatt hour kWh ampere A Volume

Speed, velocity Energy Electric current Relationship 1 ha = 10 000 m 1 km = 100 ha 1000 mL = 1L 1 cm =

1 mL 1000 L = 1 m 1 km/h = 0.278 m/s 1 kW = 1000 W 1 MJ = 1000 kJ 1 kWh =

3.6 MJ Two Metrics 1. Linear Measure 2. Mass Name The Number Prefix Symbol trillion 1,000,000,000,000 tera T giga G Thebillion Metric System: 1,000,000,000 million

1,000,000 mega M thousand 1,000 kilo k hundred 100 hecto h ten 10 deka da

unit 1 tenth 0.1 deci d hundredth 0.01 centi c thousandth 0.001 milli m millionth

0.000 001 micro billionth 0.000 000 001 nano n trillionth 0.000 000 000 001 pico p metric prefixes Linear Measure: To measure the segment, such as length, width etc. Unit: 1. The Metric System 2. The English System

1. Metric System: Metric prefixes, combined with the base unit meter, name different units of length Unit Symbol kilometer hectometer dekameter meter decimeter centimeter millimeter km hm dm m dm cm mm Relationship to Base Unit 1000m 100m 10m base unit 1m

0.1m 0.01m 0.001m Example: Complete each of the following 1. 1.4 km = ______________ m 2. 285 mm = _____________ m 3. 0.03 km = _____________ cm Solve: 1. 1.4 km = 1400 m or 1.4 km = m 2. 285 mm = m 3. 0.03 km = 30 m = 3000 cm or Practice: Fill the Followings meter kilometer 2300 m 1 km meter kilometer 1000 m 1 km 4 km

2300 m 2.3 km 4000 m 4 km Solve: Practice: Fill the Following meter millimeter 23 m 1000 mm meter millimeter 1m 1000 mm 23m 23000 mm 3.5 m 3.5 m 3500 mm Solve:

Mass Measure: To measure Mass, Newton pointed out that in everyday life the word weight Is used for what is really mass Unit: 1. The Metric System 2. The English System 1. Metric System: Metric prefixes, combined with the base unit gram, name different units of mass Unit Symbol ton (metric) kilogram hectogram dekagram gram decigram centigram milligram t kg hg dag g dg

cg mg Relationship to Base Unit 1000000g 1000g 100g 10g base unit 1g 0.1g 0.01g 0.001g Example: Complete each of the following: Solve: or or or Thank you