TMAT 103 Appendix B The Metric System

TMAT 103 §B.1 Introduction

§B.1 – Introduction International System of Units –SI Metric System –Many businesses and products are international Cars, machinery, entertainment systems, etc.

§B.1 – Introduction

Prefixes for SI units MultiplePower of 10PrefixSymbolMeaning 1,000,000,000, TeraTTrillion 1,000,000, GigaGBillion 1,000, MegaMMillion 1, KilokThousand HectohHundred DekadaTen DecidTenth CenticHundredth MillimThousandth Micro  Millionth NanonBillionth PicopTrillionth

TMAT 103 §B.2 Length

§B.2 – Length Common units for length MultiplePower of 10NameMeaning 1, KilometreThousand MetreStandard Unit CentimetreHundredth MillimetreThousandth

§B.2 – Length Examples  Convert 576 mm to cm  Convert 5,000,000 mm to km  Convert 25 dm to dam

TMAT 103 §B.3 Mass

§B.3 – Mass Common units for mass MultiplePower of 10NameMeaning 1, KilogramThousand GramStandard Unit MilligramThousandth

§B.3 – Mass Examples  Convert 3876 g to kg  Convert 50 g to mg  Convert 57  g to g

TMAT 103 §B.4 Volume and Area

§B.4 – Volume and Area Common units for volume MultiplePower of 10NameMeaning LitreStandard Unit MilliThousandth MultiplePower of 10NameMeaning 1,000,000, Cubic Kilometre (km 3 )Billion Cubic Metre (m 3 )Standard Unit Cubic Centimetre (cm 3 )One millionth Cubic Millimetre (mm 3 )One billionth

§B.4 – Volume and Area When are litres and millilitres used –Usually for liquids When are cubic measurements used –Usually for volume of spaces Rooms, Houses, etc. Relationship –1 litre = 1 cubic decimetre –.001 L = 1 cm 3

§B.4 – Volume and Area

Examples  Convert 3.4L to ml  Convert mm 3 to cm 3  Convert 2.5L to cm 3  Find the volume of the given figure V = lwh

§B.4 – Volume and Area Common units for area MultiplePower of 10NameMeaning 1,000, Square Kilometre (km 2 )Million 10, Square Hectometre HECTARE (ha) Ten thousand Square Metre (m 2 )Standard Unit Square Centimetre (cm 2 )One ten-thousandth Square Millimetre (mm 2 )One millionth

§B.4 – Volume and Area

Examples  Convert cm 2 to m 2  Convert 7.2 ha to km 2  Convert 3.7 ha to acres –1 ha = 2.47 acres  Find the area of the given figure A = lw

TMAT 103 §B.5 Temperature, Time, Current, and Power

§B.5 Temperature, Time, Current, and Power Temperature –Kelvin SI – Engineering and science No degree symbol (°) used –Celsius SI – Everyday temperature measurements –Fahrenheit US measurements

§B.5 Temperature, Time, Current, and Power Temperature Relationships –

§B.5 Temperature, Time, Current, and Power

Examples  Convert 93.3° F to C  Convert 27.2° C to F  Convert 131 K to F

§B.5 Temperature, Time, Current, and Power Time –Seconds, Minutes, Hour, Day, etc. Examples  Convert 4 hours 31 minutes to seconds  Convert 4,383,000 nanoseconds to seconds  How many seconds are in a year?

§B.5 Temperature, Time, Current, and Power Common units for current MultiplePower of 10NameMeaning AmpereStandard Unit MilliampereThousandth MicroampereMillionth

§B.5 Temperature, Time, Current, and Power Examples  Convert 3654 mA to A  Convert 1,500,000  A to A

§B.5 Temperature, Time, Current, and Power Common units for power MultiplePower of 10NameMeaning 1,000, MegawattMillion 1, KilowattThousand WattStandard Unit MilliwattThousandth

§B.5 Temperature, Time, Current, and Power Examples  Convert 3654 mW to W  Convert 1,500,000 W to MW

TMAT 103 §B.6 Other Conversions

§B.6 Other Conversions Appendix A –Conversion tables Examples  Convert 1.6 square miles to square feet  Convert 45 yards to rods  16.5 feet = 1 rod  Convert 1.5 kilometres per minute to miles per hour