Sig Figs and Conversions

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Across
  1. 2. Are the zeroes in this number significant? 100
  2. 6. The distance light can travel in a year.
  3. 7. The digits in a measured number that you actually know.
  4. 9. When we convert between units we want the units we no longer need to __________.
  5. 10. Measurements can be written as _________. For example 60mph = 60 miles / 1 hour.
  6. 12. When multiplying or dividing your answer should have the same number of sig figs as the measurement with the _____________ # of sig figs.
  7. 15. Numbers you will never know with the same degree of precision because you ultimately estimate the last digit.
  8. 17. When you use measured numbers in calculations you must preserve their _______________.
  9. 18. How many sig figs does the number 0.0078 have?
  10. 19. Mass x acceleration
  11. 20. It is easier to determine if a number is significant if you use this.
  12. 21. The base unit that is derived from an ACTUAL value, not an arbitrary one.
  13. 22. Are the zeroes in this number significant? 200.0
Down
  1. 1. The seven base units we derive all other units from.
  2. 3. Numbers that are defined.
  3. 4. work/time
  4. 5. When adding or subtracting two numbers, your answer should have the same # of significant figures after the __________ as the number with the least sig figs after the __________. (Same word in both)
  5. 8. How many places after the decimal should the following problem be rounded to? 5600.0000 + 1.11111
  6. 11. Hunk of platinum and iridium that is the kilogram.
  7. 13. Length/Time
  8. 14. How many significant figures should the answer to this problem be rounded to? 4.00 x 100.00
  9. 16. How many sig figs does the number 1403.0 have?