2024-09-16T18:29:51+03:00[Europe/Moscow] en true <p>What are the <strong>6 rules</strong> of significant figures</p>, <p>Significant figure rules for <strong>addition/subtraction</strong></p>, <p>Significant figure rules for<strong> multiplication/division</strong></p>, <p>Significant figure rules for <strong>combination operations</strong></p>, <p>m → cm → mm</p>, <p>in → cm</p>, <p>km → m</p>, <p>mi → km</p>, <p>K → C°/F°</p>, <p>F° → C°</p>, <p>C° → F°</p>, <p><strong>SI unit of volume</strong> (what is volume measuring)</p>, <p><strong>SI equation of density</strong> (what is density measuring)</p>, <p>gal → L</p>, <p>L → mL</p>, <p>What is 1 mL <strong>equal to</strong> in volume</p>, <p>in<sup>3</sup> → cm<sup>3</sup></p>, <p>kg → lb</p>, <p>kg → g → mg</p>, <p>What does the prefix <strong>kilo(k)</strong> mean</p>, <p>What does the prefix<strong> centi(c)</strong> mean</p>, <p>What does the prefix <strong>deci(d)</strong> mean</p>, <p>What does the prefix <strong>milli(m) </strong>mean</p>, <p>What does the prefix <strong>micro(μ)</strong> mean</p>, <p>What does the prefix <strong>nano(n)</strong> mean</p> flashcards

Chapter E - Unit conversion

Significant figures Unit conversion Common prefixes

  • What are the 6 rules of significant figures

    1) All nonzero digits are significant

    2) Zeroes between nonzero digits are significant

    3) Leading zeros to the left before a nonzero digit are NOT significant

    4) Trailing zeroes to the right after a decimal point are significant

    5) Trailing zeroes to the right before a decimal point and after a nonzero digit are significant

    6) Trailing zeroes before an implied decimal point are NOT significant

  • Significant figure rules for addition/subtraction

    Your answer should have the same number of digits after the decimal as the term with the fewest decimal places

  • Significant figure rules for multiplication/division

    Your answer should have the same number of significant figures as the term with the fewest

  • Significant figure rules for combination operations

    1) Use PEMDAS like usual and mark the least significant figure or decimal place INSIDE the parentheses according to A/S or M/D.

    2) Using that mark, follow the significant figure rules for operations outside the parentheses

  • m → cm → mm

    1 m = 100 cm = 1000 mm

    1 cm = 10 mm

    1 mm = 0.1 cm = 0.001 m

  • in → cm

    1 in = 2.54 cm

  • km → m

    1 km = 1000 m

    1 m = 0.001 km

  • mi → km

    1 mi = 1.61 km

    1 km = 0.621 mi

  • K → C°/F°

    0 K = - 273 C° or - 459 F°

  • F° → C°

    C° = (F° - 32) ÷ 1.8

  • C° → F°

    F° = (1.8 · C°) + 32

  • SI unit of volume (what is volume measuring)

    m3

    - volume measures the space taken up by a substance

  • SI equation of density (what is density measuring)

    d = mass ÷ volume

    - density measures the ratio of of substance's mass to the space (volume) it takes up

  • gal → L

    1 gal = 3.78 L

  • L → mL

    1 L = 1000 mL

    1 mL = 0.001 L

  • What is 1 mL equal to in volume

    1 mL = 1 cm3

  • in3 → cm3

    1 in3 = 16.39 cm3

    1 cm3 = 0.061 in3

  • kg → lb

    1 kg = 2.20 lb

    1 lb = 0.454 kg

  • kg → g → mg

    1 kg = 1000 g = 1,000,000 mg

    1 g = 1000 mg

    1 mg = 0.001 g = 0.000001 kg

  • What does the prefix kilo(k) mean

    Kilo = 1000 → 103

  • What does the prefix centi(c) mean

    Centi = 0.01 → 10-2

  • What does the prefix deci(d) mean

    Deci = 0.1 → 10-1

  • What does the prefix milli(m) mean

    Milli = 0.001 → 10-3

  • What does the prefix micro(μ) mean

    Micro = 0.000001 → 10-6

  • What does the prefix nano(n) mean

    Nano = 0.00000001 → 10-9