27403 Parallax Inc, 27403 Datasheet - Page 29

• Manufacturer Part Number: 27403
• Description: GUIDE APP ROBOTCS W/SUMOBOT V1.0
• Manufacturer: Parallax Inc

Specifications of 27403

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SumoBot®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

If you measure an object's mass to be a certain number of grams, converting to kilograms
is a matter of using the conversion factor that will make the units you don't want cancel
out.
Problem: You measured your mass to be 280 g, and you want kg.
Solution: Multiply by the conversion factor with the g in the denominator.
It will cancel out the g in the numerator of the term you are starting with (280 g), and the
result will have units of kg.
Problem: Your scale gives you a measurement of 8 oz, but you need kilograms for your
SI force calculations.
Solution: There isn't a single term in information box to get you from ounces to
kilograms, but we do know how many ounces are in a pound, how many grams are in a
pound, and how many grams are in a kilogram. Knowing this, you can make three
fractions, all equal to 1, for conversion.
Next, all you have to do is multiply 8 oz by 1 three times. Look closely at the second line
of the calculation below. In this cascade of conversion factors, the oz measurements
cancel, then the lb measurements cancel, then the g measurements cancel, and you are
left with just kg units.
1 =
1
1
1000
lb
lb
1000
=
=
1
g
16
453
kg
=
oz
1
g
6 .
kg
→
g
→
→
1
=
1
1
=
1 ft = 0.3048 m
16
=
1
1000
lb
453
oz
1
1
kg
lb
6 .
g
g
1 lb = 16 oz
Chapter 1: Mechanical Adjustments · Page 25
1 lb = 453.592 g