advertisement

Name: ___________________________ Per: ________ Unit 0 Introduction to Measurement Students MUST be able to Define the measured quantities of mass, length, area, perimeter, volume, time, temperature, and energy. Choose the appropriate units for each measurement. Memorize the metric prefixes, their symbols, and their corresponding meanings. Use dimensional analysis to covert between units. Perform conversions within the metric system using memorized conversion factors and between English and metric units using provided conversion factors. Write numbers in scientific notation. Convert numbers from scientific notation to standard notation. Category Definition Measurement Tool Units Mass Length Height Width Area Volume Time 1 Temperature Energy Units in Everyday Life: We use units every day, often without even realizing it. In the statements that follow, you will find a wide variety of interesting facts, but each is missing a crucial piece of information – the dimensions (units)! All the statements are meaningless until you supply the appropriate units. On the basis of your experiences, try to match the appropriate units for the list provided. Carats Cm degrees Celsius degrees Fahrenheit feet grams/mL inches yard kcal (Cal) liters miles miles per hour milligrams pounds stories tons kilometers kilograms Example problems: 1) America’s tallest building (Sears Tower in Chicago) is 110 __________high. 2) The Empire State Building in New York is 1250 _______________high. 3) The Nile is the world’s longest river. It is 4180 ______________long. 4) The Amazon River in South America is 6296 _______________long. 5) The coldest temperature ever recorded was -128.6 ___________ in Vostok, Antarctica, in 1983. 6) The highest recorded temperature in the United States was in Death Valley, California, when the mercury reached 57____________. 7) The world record rainfall occurred in Cherrapunji, India, where 1042 ____________ of rain fell in one year. 2 8) The largest recorded hailstone to ever fall landed in Coffeyville, Kansas, in 1979. It had a diameter of 44.5 ________! 9) The longest punt in NFL history was by Steve O’Neal of the New York Jets. He kicked the football 98 ____________. 10) The largest seed in the world is that of the coc-de-mer coconut tree, which may weigh as much as 40 _____________! 11) The world’s largest meteorite is located in Southwest Africa. It weighs 650 _________. 12) The most popular soft drink in the world is currently Coca Cola. More than 210 million ____________were consumed each day in 1990. 13) The largest diamond in the world was mined from South Africa in 1905 and weighs 3106 ____________. 14) Earth is the densest of the nine planets, with an average density of 5.515 ___________. 15) The world’s fastest aircraft is the Lockheed SR-71 Blackbird, clocking a record speed of 2,193.67 ________________. 16) The largest gold nugget ever found has a mass of 100 _____________! 17) One large chicken egg contains an average of 274 _____________ of cholesterol. 18) A 16-year old male requires an average of 2800 ____________ of energy per day while and average 16-year old female requires only 2100 ______________. Concluding Questions/Main Points: 1) Why is it essential that appropriate units accompany all measurements? 2) Why is it essential that the world have a universal form of measurement? 3 Prefix Symbol Power of 10 106 Metric Prefixes and Powers Meaning Decimal Notation Example (mass) 103 102 101 100 10-1 10-2 10-3 4 Name: _____________________________ Per. __________ Conversion Practice Perform the following unit conversions using the dimensional analysis method used in class and the conversions above. USE YOUR OWN PAPER! 1) 11.7 mm to m 2) 0.9 cg to g 3) 44 yards to m 4) 4.53 kg to g 5) 9,350 gallons to pints 6) 3450 mmHg to atm 7) 76 mL to L 8) 0.450 mm to cm 9) 0.089 kg to mg 10) 150.0 lbs to kg 11) 12,850 ft to miles Two steps required!! 12) 48,987 min to days 5 13) 18 in to mm 14) 6.0 gal to mL 15) 56,098 sec to days 16) 3.2 tons to grams Scientific Notation Practice Standard Notation 8,700,000 Scientific Notation 3.4 x 10-3 0.00098 93 8.556 x 10-8 9.0 x 10-2 5800 6