Transcript Conversion Factors Powerpoint -- Presented 08/14 or 08/15

Conversion Factors or
How To Multiply by One
How do you convert
876,854 inches to miles?
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How might we show our work?
A Definition
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CONVERSION FACTOR – A fractional
expression in which the _____________ and
_______________ are _____________, but use
different ______. Multiplication by a
conversion factor allows you to
______________ units from one to another as
necessary. This is done by making sure that
the “unwanted” unit ______________ in the
process of multiplication!
A Challenge
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Guess how old you will be in seconds, on your next
birthday?
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Now Calculate it, showing your work clearly!
Another Challenge
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Now convert 655 miles/hour to cm/sec.
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How do we handle the bottom unit?
One More

Your favorite soda has a density of 1.11 g/mL. It also
contains 38.0 grams of sugar in every 355mL can. You
have decided to ingest exactly 1 ton of sugar by drinking
this soda. How many Kilograms of this beverage will
you need to drink in order ingest 1 ton of sugar?
Ok. One more.

A drunk driver is driving at 75 mi/hr. Normal reaction
time is about 0.25 seconds, but his reaction time is 1.50
seconds. A cat stands in the road 60 meters away from his
car when he sees it. He applies his brakes 1.50 seconds
after seeing the cat. Assuming that his car will require15
meters of road to completely stop after the brakes are
applied, will the cat survive?