PA_M7_S4_T1_English
to Metric Volume Conversions Transcript
English standard to metric units of volume are another conversion we
might want to make. These are things that we see in our grocery store
already. We can buy a 2-liter bottle of soda or we can buy a 12 oz or 24
oz can. If I want to know how many 12 ounce cans are in the 2 liter
bottle then these are some of the conversions I might want to work with.
These are all based on converting to some
fraction of a liter. 1 fluid ounce is about
0.03 L, a pint is about a 0.473 L, a quart
is about 0.946 L, and a gallon is 3.785 L.
Let's convert 3 1/2 quarts to liters.
I'm going to use this conversion
factor here directly, and I simply
write that there is 0.946 L per
quart. The quarts cancel, I do the
multiplication, and I get approximately 3.31 liters in 3 1/2 quarts.
Let's look at some of the others we might find.
Let's look at converting 15 gallons into liters. This is something I
might want to know if I happen to be driving in a country where gasoline
is sold by the liter
instead of the gallon. I'm
going to go ahead and plug
in the 3.785 L/gal, my
gallons cancel, I do the
multiplication, and I find
out that 15 gallons of
gasoline is the equivalent
of about 56.775 L of
gasoline.
Let's look at using a longer process and see how far apart my two values
are. I'm going to convert 15 gallons into quarts. There are 4 quarts in a
gallon and then I'm going to use the 0.946 L per quart conversion and see
where I end up. Gallons cancel, quarts cancel, I perform thi s
multiplication, and I get 56.76 liters. This is somewhat different than
the calculation I just made, but within a certain margin of error it's
really fairly close to what I'm looking at at the pump if I'm pumping
liters of gas vs. gallons of gas.
These are examples of converting in wage units of volume two metric units
a volume that are all in liters.