pp03 - PHYSICS A World View Thursday 22 January READ Ch...

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PHYSICS: A World View Thursday, 22 January READ Ch 2 (pp. 22-24), PS 2: 3-4 PRAC Ch 2: Q 19, 21, 31; E 13, 17; P 7 HW #3 Ch 2: Q 20, 24; E 10, 14 Tu 27 Jan LAB #2 Average Speed Pre = 1 b&c

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An operational definition is 1 2 3 0% 0% 0% 1. a rule for attaching a number to a concept. 2. a logical argument for obtaining a law of physics. 3. a method of excising the truth from nature. 0% 0 of 200
Bode's Law was never considered to be a law of physics because 1 2 3 4 5 20% 20% 20% 20% 20% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. it isn't testable. 2. it isn't consistent. 3. it turned out not to be true. 4. it had no scientific basis. 5. it wasn't invented by Bode.

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How many significant figures are there in 0.005 555? 1 2 3 4 5 20% 20% 20% 20% 20% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. 1 2. 4 3. 5 4. 6 5. 7
Units  Any   units  are  OK  if  reproducible  Time  second, minute, hour, day, week, fortnight,  month, year, decade, century, millenium …  Length  mil, inch, foot , yard, rod, furlong, fathom,  league, mile, nautical mile, astronomical  unit, light year, parsec . ..

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Metric System  Proposed  in  1700s  as  world   standard  Thomas  Jefferson  urged  adoption  USA  is  only  major  country  not  using
Converting Units mile 1 mile 1 ft 5280 ft 1 in. 12 63,360 in. =

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Prefixes   milli        m         1/1000   centi       c           1/100   kilo          k            1000  meter  is  a  little  longer  than  a  yard  kilometer  (km)  is  5/8  mile  millimeter  (mm)  is  about  width  of   paper  clip
CRAWLER The Crawler that carries the Space Shuttle to launch pad #39A moves very slowly. If it travels at 1 mph, what is its speed in furlongs/fortnight?

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pp03 - PHYSICS A World View Thursday 22 January READ Ch...

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