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DO NOW

DO NOW. Do Now What do you thinks is the difference between a systematic error and a random (human) error? If you haven’t done so already….In your groups answer #9 on TB pg. 24 in your notebooks, be prepared to share out. Physics Talk. What are Random Errors?.

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DO NOW

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  1. DO NOW • Do Now • What do you thinks is the difference between a systematic error and a random (human) error? • If you haven’t done so already….In your groups answer #9 on TB pg. 24 in your notebooks, be prepared to share out

  2. Physics Talk • What are Random Errors? • Produced by measuring tools and human mistakes • Cannot be corrected by calculations • Can never be eliminated

  3. Physics Talk • What are Systematic Errors? • Can be avoided • Corrected by calculations • Example: If I accidentally measured in inches, when I was supposed to measure in centimeters, I could convert to get the right numbers

  4. Physics Talk • What is accuracy? • What is precision? • How close to an accepted value • Example: Shooting on goal in soccer • Frequency of results • Always hit close to the same spot • Example: Always missing wide right when shooting the ball in soccer

  5. Are each of these pictures accurate or precise or both?

  6. K H D U d c m

  7. Metric Conversions Ladder Method T. Trimpe 2008 http://sciencespot.net/

  8. August 17, 2011HW:PTG pg. 32 #6-9 • Do Now: In your notebook (below notes) answer the following: • WDYTN? TB Pg. 30 • Reflecting on the Section Challenge: TB pg. 31 • How will what you learned in 1.2 help you with your chapter challenge (pg. 3) • Success Criteria • Calibrate the length of a stride • Measure a distance by pacing it off and by using a meter stick • Identify sources of error in measurement • Evaluate estimates of measurements as reasonable or unreasonable • Complete various metric conversions • Agenda: • Collect Metric Mania • Do Now • Success Criteria • PTG pg. 32 #6-9

  9. Quiz 1.2

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