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Chapter 3 Scientific Measurement Review

Chapter 3 Scientific Measurement Review. Charles Page High School Dr. Stephen L. Cotton. Chapter 3 - Review. Express 0.000 000 000 154 m in scientific notation. What is 5928 km expressed in scientific notation? What is the result of multiplying (2.5 x 10 10 ) x (3.5 x 10 -7 )?.

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Chapter 3 Scientific Measurement Review

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  1. Chapter 3Scientific MeasurementReview Charles Page High School Dr. Stephen L. Cotton

  2. Chapter 3 - Review • Express 0.000 000 000 154 m in scientific notation. • What is 5928 km expressed in scientific notation? • What is the result of multiplying (2.5 x 1010) x (3.5 x 10-7)?

  3. Chapter 3 - Review • Perform: (2.5 x 103) + (3.5 x 102) • Which is the best example of a quantitative measurement: 2.01, or 2.01 grams? • Which of the following is NOT a quantitative measurement: 5 liters, or very small?

  4. Chapter 3 - Review • When a test instrument is calibrated, does it’s accuracy, precision, or reliability improve? • The closeness of a measurement to it’s true value is a measure of … • In the measurement 0.503 L, which digit is the estimated digit?

  5. Chapter 3 - Review • How many significant figures in the measurement 0.0034 kg? • How many significant figures in the measurement: 40 500 mg? • How many significant figures in the measurement 811.40 grams? • Round 111.009 mm to 4 sig. figs.

  6. Chapter 3 - Review • What is the measurement 1042 L rounded to two significant figures? • Express the sum of 1111 km and 222 km, using the correct sig. figs. • Express the sum of 7.68 m and 5.0 m, using the correct sig. figs.

  7. Chapter 3 - Review • Express the product of 2.2 mm and 5.00 mm, using the correct number of significant figures. • Express the product of (4.0 x 10-2 m) x (8.1 x 102 m) • Which is most accurate: 3.122 22 g or 3.000 000 g

  8. Chapter 3 - Review • Which group of measurements is the most precise? a) 2 g, 2.5 g, 3 g b) 1 g, 3 g, 5 g • Three different people weigh a standard mass of 2.0 g, and each obtains 7.32 g for the mass. The results imply the balance was ...

  9. Chapter 3 - Review • Which is expressed to 3 significant figures: 0.007 m, or 7.30 x 10-7 km • Which contains 2 significant figures: 0.004 40 L, or 0.000 44 L • When multiplying and dividing, the answer should be equal to the number of sig. figs. in ...

  10. Chapter 3 - Review • What quantity is represented by the metric system prefix deci-? • What is the metric system prefix for the quantity 0.000 001 • What is 0.0075 m expressed in cm? • What is 7896 mm expressed in m?

  11. Chapter 3 - Review • A nanosecond is how many seconds: 10-6 s, or 10-9 s? • 78 Liters is equal to how many cubic meters? • What is the volume of a salt crystal measuring (2.44 x 10-2 m) x (1.4 x 10-3 m) x (8.4 x 10-3 m)?

  12. Chapter 3 - Review • Express 987 milligrams in grams. • The chief advantage of the metric system over other systems of measurement is that it … • Which is NOT an official SI unit: kilogram, liter, or mole

  13. Chapter 3 - Review • Which of the following units is NOT a derived SI unit: a) grams per cubic centimeter b) millimeters of mercury c) moles per gram • Which of the following is NOT correct: a) 1 cm3 = 1 mL b) 10 kg = 1 g c) 1000 mm = 1 m

  14. Chapter 3 - Review • Which of the following mass units is the largest: 1 ng, or 1 dg • Which of the following quantites are the units derived: mass, or volume • Which of the following volumes is the smallest: 1 milliliter, or 1 microliter

  15. Chapter 3 - Review • A cubic meter is about the same as the volume occupied by: a basketball arena, or a washing machine • The weight of an object … • What is the SI unit of mass: pascal, joule, or kilogram

  16. Chapter 3 - Review • If a liter of pure water is heated from 20 oC to 50 oC, what happens to its volume? • What is density of an object having a mass of 8.0 g and a volume of 25 cm3?

  17. Chapter 3 - Review • If the temperature of a piece of steel decreases, what happens to its density? • As the density of a substance increases, the volume of a given mass of that substance ...

  18. Chapter 3 - Review • What is the volume of 80.0 g of ether, if the density is 0.70 g/mL? • What is the volume of 344 g of ice, if the density is 0.92 g/mL? • What is the volume of 45.6 g of silver, if the density is 10.5 g/mL?

  19. Chapter 3 - Review • If the density of a particular liquid is 0.98 g/cm3 at 4 oC, how does the specific gravity of this liquid compare to that of water?

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