1. Basic Units Lengthmeters Masskilograms Timeseconds

2. TemperatureKelvin Amount Chm Mole CurrentAmpere Luminous InCandela

3. Metric Prefixes Mega(M)Nano(n) Kilo(k) Milli(m)Centi(c) Micro(  )

4. Metric Prefixes (M) = 10 6 (n) = 10 -9 (k) = 10 3 (m) = 10 -3 (c) = 10 -2 (  ) = 10 -6

5. Accuracy How close you are to the real answer

6. Precision How well one can repeat his or her work Repeatability

7. Uncertainty All measurements have a degree of unreliability Usually in the last digit of a measurement

8. Significant Digits Meaningful digits in a number

9. Multiplication Uncertainty The answer should have the same number of significant digits as the multiplier with the least number of SD Same for division

10. Addition Uncertainty When adding, line up decimal place & add The decimal places in the answer should = the least Same for subtraction

11. Determining Significance All non-zero digits All zeros between non-zero numbers All trailing zeros if there is a decimal place

12. Scientific Notation M x 10 n M = 1.00  M < 10.00 n = an integer

13. Conversion Factor Ratio equal to one 12 inches/1 foot Multiply one unit by a conversion to obtain another unit w/o affecting magnitude

14. Convert: 2.50 cm to Mm 4.2 ns to ms 3.15 kg to  g

15. Determine the length in miles of a light year Light year = distance light travels in one year c = 3.0 x 10 8 m/s 1 mile = 5280 ft 1 inch = 2.54 cm

16. Convert: 4.35 kg/L to mg/  L 2.31 mm/ns to cm/Ms

17. Calculate the volume in m 3 occupied by 750 kg of gas with 1.50 g/L 1 cm 3 = 1 mL

18. Calculate the mass in kg of a board that has dimensions of 250 mm x 4.0 x 10 4  m x 2.5 m and had a density of 0.80 g/mL 1 ml = 1 cm 3

19. Calculate the density of a 3.14 x 10 3 kg cylinder that 5.0 m long & has a diameter of 2.0 m.

20. How many nm will an object travel in 1/132 ks at 720 miles per hour 1 inch = 2.54 cm 1 mile = 5280 ft

21. Measurements Work problems 5 - 12 on page 25

22. Sig. Figs. Work problems 17 - 24 on page 25

23. Conv. Factors Work problems 28 & 36 on page 24

24. Measurements Work problems 5 - 12 on page 25

25. Define all the key terms on page 24

26. Work problems 13 - 16 on page 25

27. Conversion Factors Work problems 37 - 46 on page 25