Definition/Procedure Example Converting Between Metric Units of Capacity We can use unit fractions or the metric conversion chart to convert between metric units of capacity. (p. 457) Change 350 mL to liters using a) a unit fraction and b) the metric conversion chart. a) To use a unit fraction, we use the relationship 1000 mL 1 L. 350 mL 1 L 1000 mL 350 mL 1 1 L 1000 mL Divide out the unit of milliliters. 350 L 1000 Multiply. 0.350 L Simplify. So, 350 mL 0.350 L or 0.35 L. b) We can also use the metric conversion chart. Start at mL on the metric conversion chart. Move three places to the left to get from mL to L. Move the decimal point three places to the left. 350. mL .350 L Put the decimal point at Move the decimal point the end of the number. three places to the left. So, 350 mL 0.350 L or 0.35 L. Units of Weight (Mass) In the metric system, the basic unit of mass is the gram, abbreviated as g. If an object is on the Earth, the weight and mass of that object are the same. So, we will use the word weight. (p. 459) A penny weighs approximately 2.5 g. (www.usmint.gov) To describe larger and smaller units of weight (mass) in the metric system, we use the same prefi xes on grams that we used for meter to describe length. The units used most often are kilogram, gram, and milligram. (p. 459) 1 kilogram (kg) 1000 grams (g) 1000 milligrams (mg) 1 gram (g) Converting Between Metric Units of Weight (Mass) We can use unit fractions or the metric conversion chart to convert between metric units of weight (mass). (p. 461) Change 4.8 kg to grams using a) a unit fraction and b) the metric conversion chart. a) To use a unit fraction, we use the relationship 1 kg 1000 g. 4.8 kg 1000 g 1 kg 4.8 kg 1 1000 g 1 kg Divide out the unit of kilograms. 4800 g 1 Multiply. 4800 g Simplify. So, 4.8 kg 4800 g. b) We can also use the metric conversion chart. Start at kg on the metric conversion chart. Move three places to the right to get from kg to g. Move the decimal point three places to the right. 4.8 kg 4800. g Move the decimal point three places to the right. 4.8 kg 4800 g www.mhhe.com/messersmith CHAPTER 7 Summary 485
messersmith_power_basic_college_1e_ch4_7_10
To see the actual publication please follow the link above