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PHYSICS

PHYSICS. DAY 1. HONK HONK Don’t give up!. HONK HONK Good job!. HONK HONK Right behind you!. HONK HONK You go goose!. HONK HONK You can do it!. FACTOR – LABEL Method ALWAYS works because of these two principles:.

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PHYSICS

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  1. PHYSICS DAY 1

  2. HONK HONK Don’t give up! HONK HONK Good job! HONK HONK Right behind you! HONK HONK You go goose! HONK HONK You can do it!

  3. FACTOR – LABEL Method ALWAYS works because of these two principles: A fraction equals ______ when the _______________ and __________________ are equivalent NUMERATOR ONE DENOMINATOR Anything ______________ by ONE is _______________ UNCHANGED MULTIPLIED

  4. X X X X X 2.54 cm = 1 inch PRACTICE 3 days = _________ s 24 hr 60 sec 60 min 3 days = 1 day 1 hr 1 min 259,200 s 255 inches = _________ m 2.54 cm 1 m 255 in = 6.48 m 100 cm 1 in

  5. X X X X X X X PRACTICE 7,000 cm3 = ________m3 1 m 7000 cm3 1 m 1 m = 100 cm 100 cm 100 cm .007 m3 600,000 s = ________ weeks 1 min 1 day 1 week 1 hr 600,000 s = 60 min 24 hr 7 days 60 s .992 wk

  6. X X X X X X X 1.61 km = 1 mile 1000 m = 1 km Factor Label in TWO Dimensions 25 m/s = ________ km/hr 25 m s 1 km 1 min 60 min 1 hr 1000 m 60 s 90 km/hr = 1000 m 1 km 1 min 60 min 60 s 1 hr 180 mph = _________ m/s 180 mi hr 1.61 km 80.5 m/s = 1 mi

  7. 1 1 1 1 1 7 x x x x x 10 10 10 10 10 1 105 = 7 x Scientific Notation Writing numbers as powers of TEN 600,000 = 6 x 10 x 10 x 10 x 10 x 10 = 6 x 105 7  10  10  10  10  10 .00007 = = = 7 x 10-5

  8. 34,000,000 = 3.4 x 107 x 10-7 .0000008 = 8 x 10-4 .000678 = 6.78 x 101 7.25 72.5 = x 10-10 .00000000099 = 9.9

  9. 8.2 x 10-9 7.4 x 1011 Exp EE Try this... Scientific Notation on Calculator “ TIMES TEN TO THE ” 1.1 x 10-20

  10. Factor Label w/ Metric Prefixes METER m LITER l or L GRAM g BASE UNITS

  11. Pico p 10-12 Tera T 1012 Nano n 10-9 Giga G 109 Micro 10-6 Mega M 106 Milli m 10-3 Kilo k 103 Centi c 10-2 Hecto h 102 Deci d 10-1 Deka da 101

  12. 8.1 L = ____________ML To base unit To desired unit L 1 x 10-6 1 ML 8.1 L 8.1 x 10-12 ML X ---------------- X ---------------- = L 1 1 x 106 L 25 pm = ______ cm To base unit To desired unit m 1 x 10-12 1 cm 25 pm 2.5 x 10-9 cm X ---------------- X ---------------- = pm 1 1 x10-2 m

  13. Significant Figures IMPORTANT NEEDED MEANINGFUL

  14. Sig Fig Rules 1. Non-zeros ARE significant 124 3 sig figs 46.71 4 sig figs 2. Zeros between sig figs ARE significant 400,001 6 sig figs 30.5 3 sig figs 3. Place-holders ARE NOT significant 300 1 sig figs .0025 2 sig figs 4. Exact zeros ARE significant 3.00 3 sig figs .20 2 sig figs

  15. 1. Non-zeros ARE significant 2. Zeros between non-zeros ARE significant 3. Place-holders ARE NOT significant 4. Exact zeros ARE significant 90.02 2300 .00005 .0402 1.0020 4 sig figs 2 sig figs 1 sig fig 3 sig figs 5 sig figs

  16. 1. Non-zeros ARE significant 2. Zeros between sig figs ARE significant 3. Place-holders ARE NOT significant 4. Exact zeros ARE significant 200 200.0 2020 .002 .200 1 sig figs 4 sig figs 3 sig fig 1 sig figs 3 sig figs

  17. Rounding Sig Figs 1 sig fig 2 sig figs 3 sig figs 4 sig figs 7 sig figs 20,000 23,000 23,500 23,460 23,456.79

  18. 2 sig figs Round to 2 sig figs Rounding Sig Figs and Factor Label 1 inch 8.1 m 100 cm 318.8976 cm X ---------------- X ---------------- = m 1 2.54 cm 320 cm

  19. THE END

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