Mr. Ciardullo's Class Webpage
Conversion
METRIC SYSTEM:
Ex. Length – µm mm cm m km
Always use the root of the unit as a reference point (i.e. “m” ( metres) to compare the other units to.
When using measurement data, it is important to maintain the same units throughout. Therefore it is often required that we convert data to the correct units.
Problems: To solve we need to use Unit Conversion Ratios!
A) 2.50 kg = __________ g
B) 37, 000 cm = __________ km
C) 2.9 mg = __________ g
D) 5.2 km = ___________m
Sometimes a physical quantity is expressed as a combination of quantities (Especially in Physics!)
Ex. To convert from one unit group to another may involve more than one step.
Problem: Convert 50 km/hr to m/s Practice:
km/hr ( m/s 20 km/h to m/s (
Convert 60 m/s to km/hr 52.6 km/h to m/s (
m/s ( km/hr
32.0 m/s to km/h (
Conversion Problems
Complete each question.
1) 100 cm = ___________ m
2) 39 cm = ____________km
3) 514 ml = ____________L
4) 231 mm = ___________ m
5) 4.63 cg = ___________kg
6) 12 km/h = ___________m/s
7) 122 km/h = ____________m/s
8) 17.2 m/s = ____________km/h
9) 32 m/s = ____________km/s
10) 29 m/min = ____________ km/h
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UNIT PREFIXES
“m” (milli) =
“c” (centi-) =
“k” (kilo-) =
“µ” (micro-) =
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