Enter your Name:   Enter your E-mail Address:  Be sure to write all your answers with the proper number of significant figures and to list the units that go with your answers! 01. What are the meanings for the metric prefixes "milli," "centi," and "kilo?" 02. Which is heavier, a 0.3 g rock or a 30.0 mg rock? 03. The following numbers are the results of several measurements of a football field (which is supposed to be 100.0 yards long): a. 113.1 yards b. 1.0 x 102 yards c. 99.126 yards Which of these three numbers represents the most precise measurement? Which is the most accurate? 04. If we observe a fishing bobber float on the surface of the water, what can we conclude about the density of the bobber compared to the density of the water? 05. What is the volume of the liquid in the following graduated cylinder? 06. If the mass of the liquid in problem #5 was 32.13 grams, what would its density be? 07. How many cm are in 16.2 m? 08. If an object has a mass of 345.6 mg, what is its mass in grams? 09. If a football field is 100.0 yards long, how many miles long is it? (1 yard = exactly 3 feet, 1 mile = 5.280 x 103 feet). 10. The density of gold is 19.3 grams per mL. A miner finds a gold-colored nugget whose volume is 34.2 mL and whose mass is 661 grams. Is it really a nugget of gold? 11. A fisherman wants to determine the volume of his lead sinker. If lead's density is 11.4 grams per cc and the sinker has a mass of 0.123 kg, what is the volume of the sinker? 12. Convert the number 3478 to scientific notation. 13. Convert the number 1.245 x 10-4 into decimal notation. 14. The volume of a sphere is given by the equation Where = 3.1416, and r is the radius of the sphere. If a sphere's radius is 3.1 m, what is its volume in liters? 15. The mass of an object is measured on earth and also on the moon. How do the two measured masses compare?