Transcript g kg de conversión

Dimensional Analysis is a method for
converting from one measurement type to
another.
For example, converting 76 centimeters
(76 cm) to meters or
76 cm = ? meters
1. The first step is to copy the number with the units.
1 m
76 cm x ________
= 0.76 m
100 cm
2. Multiply the number by a fraction which is called a
conversion factor.
3. Whatever the units are on the first measurement,
copy those units to the bottom of the conversion factor.
4. In the top part of the conversion factor, put in the
units you want to change to.
5. Put in the numbers that relate the two units in the
conversion factor.
6. Do the math.
Let’s try a similar problem.
34 meters would be how many millimeters?
or
34 m = ? mm
1. The first step is to copy the number with the units.
1000 mm
34 m x ________
= 34000 mm
1 m
2. Multiply the number by a fraction which is called a
conversion factor.
3. Whatever the units are on the first measurement copy
those units to the bottom of the conversion factor.
4. In the top part of the conversion factor, put in the
units you want to change to.
5. Put in the numbers that relate the two units in the
conversion factor.
6. Do the math.
Let’s do another.
12 kilograms would be how many grams?
or
12 kg = ? g
1. The first step is to copy the number with the units.
1000 g
12 kg x ________
= 12000 g
1 kg
2. Multiply the number by a fraction which is called a
conversion factor.
3. Whatever the units are on the first measurement copy
those units to the bottom of the conversion factor.
4. In the top part of the conversion factor, put in the
units you want to change to.
5. Put in the numbers that relate the two units in the
conversion factor.
6. Do the math.
A more difficult problem would be
12 kilograms would be how many milligrams?
or
12 kg = ? mg
? mg
12 kg x ________
? kg
Changing kg to mg in one step is hard
so you break the problem up into easier steps.
1000 g x ________
12 kg x ________
1000 mg = 12,000,000 mg
1 kg
1 g
Instead of kg a mg
Change kg a g then a mg
What conversion factor would you use to
convert 2.6 liters to milliliters?
1L
A. ______
10 mL
1L
D. _______
100 mL
1000 L
B. _______
1 mL
E.
1000 mL
C. _______
1L
100
L
_____
1 mL
What conversion factor would you use to
convert 2.6 liters to milliliters?
2.6 L = ? mL
2.6 L x _______
?
= ? mL
?
2.6 L x 1000
_______
? mL = ? mL
1? L
2.6 L x 1000
_______
mL = 2600mL
1 L
What conversion factor would you use to
convert 2.6 liters to milliliters?
1L
A. ______
10 mL
1L
D. _______
100 mL
1000 L
B. _______
1 mL
E.
1000 mL
C. _______
1L
100
L
_____
1 mL
Conversions from one system to another can also be done
using dimensional analysis.
But you’ll need a conversion factor to get from one system
to another.
Conversions
1.0 meter = 1.1 yard
1.0 liter = 1.06 quarts
1.0 kg = 2.2 pounds (lb)
1.0 yard = ? cm
distance
volume
mass
1.0 meter = 1.1 yard
1.0 liter = 1.06 quarts
1.0 kg = 2.2 pounds (lb)
100 cm
1.0 m x ______
1.0 yd x ________
= 91 cm
1 m
1.1 yd
1.0 meter = 1.1 yard
2.0ftmiles
=1 ?ydcmx _____
1 m x ______
100 cm
5280
2.0 miles x _________
x _____
American Units
Metric
1.1 ydUnits 1 m
1 mile
3 ft
of Length
of Length
= 320,000 cm
miles
km
feet
yards
nm
meters
cm
inches
mm