IMPERIAL V. METRIC

Which weighs more? 1 oz. of feathers 1 oz. of gold OR

TWO SYSTEMS Imperial Feet, gallons, Fahrenheit, pounds Metric Meters, liters, Celsius, grams

METRIC SYSTEM Built on Base 10 = Easy calculations Standard prefixes Countries who use metric: Albania, Algeria, Andorra, Angola, Argentina, Armenia, Australia, Austria, Barbados, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia, Botswana, Brazil, Brunei, Bulgaria, Burma, Cambodia, Cameroon, Canada, Chad, Chile, China, Columbia, Congo, Croatia, Cuba, Czech Republic, Denmark, Ecuador, Egypt, El Salvador, Estonia, Ethiopia, Finland, France, Georgia, Germany, Ghana, Greece, Guatemala, Guinea, Guyana, Haiti, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kenya, Korea, Laos, Latvia, Lebanon, Liberia, Libya, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Moldova, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nepal, Netherlands, New Zealand, Nicaragua, Norway, Oman, Pakistan, Palestine, Panama, Paraguay, Peru, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Samoa, Senegal, Serbia, Sierra Leone, Singapore, Slovakia, Slovenia, Somalia, South Africa, Spain, Sri Lanka, Sudan, Swaziland, Sweden, Switzerland, Syria, Tanzania, Thailand, Tonga, Tunisia, Turkey, Uganda, Ukraine, United kingdom, Uruguay, etc.

The base units for measurement include: m = meter for length g = gram for mass s = second for time L = liter for volume

IMPERIAL SYSTEM No standard base = Complicated calculations No prefixes Countries who use Imperial: United States, Liberia, Burma

CONVERSIONS 1. How many inches in 7.2 feet? 7.2 ft x 12 inches = 1 ft 86.4 inches The key is to cancel units!

Why should I learn the metric system? -Scientist-Pharmacist-Business -Engineer-Travel-Mechanic -Military-Nurse-Doctor -Manufacturing

METRIC UNITS prefixkilohectodeka Base unit decicentimilli Abb.khdk____dcm Value Metric value chart for measurements Examples: 1 kilometer = 1000 meters 1 dekagram = 10 grams 1 millisecond = second

CONVERSIONS How many millimeters in 3.4 meters? Our table states that: 1 mm = m 3.4 m x 1mm = 0.001m The key is to cancel units! 3,400 mm

Attempt the following conversions on your paper: A kilometers = ? Meters B decagrams = ? Grams C deciseconds = ? Seconds D milliliters = ? Liters

What about multistep problems? How many millimeters are in 13 kilometers? 13 km x 1000 m x 1 mm = 1 km.001 m To solve multistep problems we use multiple ratios. Always convert to the base unit first! 13,000,000 mm

Attempt the following conversions on your paper: A. 25 decimeters to hectometers B kilometers to centimeters C. 37 dekaliters to deciliters D milliseconds to deciseconds

SCIENTIFIC NOTATION

So, which weighs more? 28 g 31.1g OR An ounce is usually the international avoirdupois ounce as used in the United States, which is equal to one-sixteenth of a pound or approximately 28 grams; however, other definitions of ounce (most important, the international troy ounce) are used in a number of different measurement systems.