bolt what was measured bolt back to CHAPTER
bolt! what was measured?
bolt! (back to) CHAPTER 1 Chemistry and You Numbers in Science…. what was measured? They aren’t just numbers anymore! 3 ? !? 67. 9 _______ ? t a h w 0. 0056 ______ ? The record of a measurement includes: 12. 23 grams of chocolate unit (increment) # of units of what working with units…. 1. units in calculations ___________________________________________ 2. unit conversions __________________________________________
The record of a measurement includes: 12. 23 grams of chocolate unit (increment) # of units of what working with units…. 1. units in calculations __________________ units “act” like numbers (sort of)… the units________________________ of your answer must match the quantity you are solving for nt e r e diff s e e thr antitie qu converting measurements between 2. unit conversions ___________________ UNITS of the SAME quantity ________________________
working with units…. 1. unit conversions ___________________ converting measurements between ________________________ UNITS of the SAME quantity “need” to in calculations ______________ so that measurements _____________________ of a given quantity are in the same unit hours and sec don’t’ cancel… need to convert sec to hours OR hours to sec re a t a convenience ________________ h so that the magnitudes of measurements t s … t i r un milia are____________________ given in numbers that are not too small or large o t a n c i f or re rs/se o m te -12 e m to our 0. 0000001 m OR 1 10 m /h OR s e l i m 1 pm (picometer)
working with units…. 1. unit conversions ___________________ converting measurements between ________________________ UNITS of the SAME quantity start with a measurement (record of a measured value) ___________ value (#of) increments (units) how many _______ is of what equivalent to? unit of the same quantity _______ can’t ask how many _______ is equivalent to? unit of the quantity _______
start with a measurement (record of a measured value) ___________ increments of what value (#of) (units) how many _______ is equivalent to? need to know how many ______ in a _______ (a) (b) unit equality _______ = _______ (a) construct the conversion factor (or unit factor) (b)
set up conversions on board
Bolt’s speed https: //en. wikipedia. org/wiki/Fastest_animals
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