Measurement: Errors, Accuracy, and Precision

August 13, 2010 HW: Physics to Go (PTG)-pg. 32, #6-9  Do Now (NB pg. 6)  Turn in Current Event  WDYS & WDYT-  TB pg 22  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 CE  Do Now  1.2 Measurement: Errors, Accuracy, and Precision  Physics Talk  Metric Mania  Quiz 1.2  Homework:  PTG, pg. 32, #6-9

Investigate pg

August 17, 2010 HW: Finish PTG #6-9  Do Now (below data for 1.2 in notebook):  What is the difference between a systematic error and a random (human) error?  In your groups answer #9 on TB pg. 24 in your notebooks, be prepared to share out  You may use a computer, meter stick or tape measure to help you with the conversions  Agenda:  Do Now  Success Criteria  1.2 Measurement: Errors, Accuracy, and Precision  Physics Talk  Metric Mania  Quiz 1.2  Homework:  PTG, pg. 32, #6-9  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

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

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

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

Metric Conversions Ladder Method T. Trimpe

August 18, 2010 HW: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  1.2 Quiz  PTG pg. 32 #6-9

Quiz 1.2