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1. TEST REVIEW2.1 – 2.5 Measurement2.1 Units of Measurment2.2 Scientific Notation2.3 – 2.4 Sig Figs2.5 Metric System

2. 2. 5.21 cm is the same distance as ___. A) 0.0521 m B) 52.1 dm C) 5.21 mm D) 0.000 521 km E) 5210 m

3. 3. The measurement of gravitational pull on an object is its A) volume B) weight C) mass D) length E) size

4. 4. Which of the following is the basic unit of volume in the metric system? A) liter B) milliliter C) cubic meter D) centimeter E) cubic deciliter

5. 5. Which of the following is the SI basic unit of mass? A) milliliter B) gram C) kilogram D) meter E) Angstrom

6. 6. The measurement 0.000 043 m, expressed correctly using scientific notation, is ___. A) 4.30 x 10-7 m B) 4.3 x 107 m C) 4.3 x 10-6 m D) 4.3 x 10-5 m E) 4.300 00 m

7. 7. The number 680,000,000 expressed correctly using scientific notation is ___. A) 6.8 B) 68 X 107 C) 680 X 106 D) .68 X 10-9 E) 6.8 X 108

8. 8. Which of the following numbers is the smallest? A) 4.0 x 10-6 B) 4.0 x 10-8 C) 4.0 x 10-2 D) 4.0 x 1015 E) 4.0 x 10-12

9. 9. Sig Figs are important because they indicate ___. A) a counted number B) the number of digits in the calculator C) the number of measurements D) the number of digits in a measurement E) the accuracy of the student’s math

10. 10. Which of the following measurements has 3 Sig Figs? A) 0.005 m B) 510 m C) 0.510 m D) 0.051 m E) 5100 m

11. 11. Which of the following numbers CORRECTLY matches the indicated number of Sig Figs? A) 0.043 00 5 SF B) 0.003 02 2 SF C) 156,000 3 SF D) 1.04 2 SF E) 3.0650 4 SF

12. 12. Which of the following is a derived unit? A) length B) volume C) mass D) time E) temperature

13. 13. Which of the following numbers is the largest? A) 2.05 x 103 B) 2.05 x 10-12 C) 2.05 x 105 D) 2.05 x 108 E) 2.05

14. 14. The number of Sig Figs in the measurement of 45.030 mm is ___. A) 0 B) 3 C) 4 D) 5 E) 6

15. 15. Which of the following correctly rounds the number 0.02235 to 1 Sig Fig? A) 0.02 B) 0.0 C) 0.022 D) 0.1 E) 0.03

16. 16. How many Sig Figs are in the number 0.002 08? A) 6 B) 2 C) 3 D) 4 E) 5

17. 17. A calculator answer of 423.6059 must be rounded off to 3 Sig Figs. What answer is reported? A) 423 B) 424 C) 420 D) 423.6 E) 423.7

18. 18. Which of the following examples illustrates a number that is correctly rounded to 3 Sig Figs? A) 4.05438 g to 4.054 g B) 0.03954 g to 0.040 g C) 103.692 g to 103.7 g D) 109, 526 g to 110, 000 g E) 20.0332 g to 20.0 g

19. 19. Which of the answers shown below contains the correct number of Sig Figs? A) 2.543 m (39.37 in/ 1 m) = 100.1942 in B) 2 L (1.057 qt/ 1 L) = 2.12 qt C) 24.95 min (1 hr/ 60 min) = 0.4158 h D) 12.0 ft (12 in/ 1 ft)(2.54 cm/ 1 in) = 370 cm E) 24.0 kg (1 lb/ 2.205 kg) = 11 lb

20. 20. What is the correct answer for the calculation of a volume (in mL) with the measured numbers 28.58 / (16 x 8.02)? A) 0.22 mL B) 0.223 mL C) 57 mL D) 14 mL E) 14.3 mL

21. 21. A researcher needed 3 samples of NaCl solution, each with a volume of 0.03510 mL. The total volume needed, if the three volumes are added together, should be reported as ___. A) 0.105 mL B) 0.0105 mL C) 0.10 mL D) 0.10530 mL E) 0.1053 mL

22. 22. What is the answer, with correct Sig Figs, for this problem?4.392 g + 102.40 g + 2.5 g = ? A) 109.302 g B) 109 g C) 109.3 g D) 109.30 g E) 110 g

23. 23. Which of the following measurements are NOT equivalent? A) 25 mg = 0.025 g B) 183 L = 0.183 kL C) 150. ms = 0.150 s D) 84 cm = 8.4 mm E) 24 dL = 2.4 L

24. 24. The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is ___ A) 13.071 g B) 13 g C) 13.0 g D) 10 g E) 13.1 g

25. 25. In which of the following is the metric unit paired with its correct abbreviation? A) microgram / mg B) milliliter / mL C) centimeter / km D) kilogram / cg E) gram / gm

26. 26. Which of the following is the largest unit? A) millimeter B) micrometer C) meter D) decimeter E) kilometer

27. 27. The mole is the SI unit of ___. A) luminous intensity B) volume C) amount of a substance D) density E) mass

28. 28. What is the metric relationship between grams and micrograms? A) 1 g = 100 μg B) 1 g = 1,000,000 μg C) 1 g = 0.000 001 μg D) 1 g = 1,000 μg E) 1 g = 0.001 μg

29. 29. Which of the following is the smallest unit? A) gram B) milligram C) petagram D) hectogram E) decigram

30. 30. The cubic centimeter (cm3 or cc) has the same volume as a ___. A) cubic inch B) cubic liter C) milliliter D) centimeter E) dm3

31. 31. 9.31 g is the same mass as ___. A) 0.931 dag B) 93.1 mg C) 931 kg D) 9310 hg E) 0.0931 kg

32. 32. Which of the following is anexact number? A) you have a temperature of 100.1 oF B) a rabbit weighs 2.5 pounds C) a lab test shows a blood sugar level of 350 mg/ dL D) a book has 452 pages E) you drank 0.5 L of water

33. 33. Which of the following is NOT a derived unit? A) pressure B) force C) length D) volume E) energy

34. 34. 0.001 matches up to which of the following metric prefixes? A) centi- B) kilo- C) Mega- D) deci- E) milli-

35. 35. 7.785 x 108daL = ____ ML? A) 0.000 778 5 B) 778,500,000 C) 0.07785 x 103 D) 7.785 x 103 E) 77,850