Lesson 1: Length

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• Lesson 1 Length

T. Trimpe 2008 http//sciencespot.net/
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English vs. Metric Units
Which is longer? A. 1 mile or 1 kilometer B. 1
yard or 1 meter C. 1 inch or 1 centimeter
Left Image http//webapps.lsa.umich.edu/physics/d
emolab/controls/imagedemosm.aspx?picid1167Right
Image http//share.lancealan.com/N80020ruler.jpg
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km
Metric Units
m
cm
mm
The basic unit of length in the metric system in
the meter and is represented by a lowercase
m. Standard The distance traveled by light in
absolute vacuum in 1/299,792,458 of a second.
Complete each statement with Metric Units 1
Kilometer (km) 1000 meters (m) 1 Meter 100
Centimeters (cm) 1 Meter 1000 Millimeters (mm)
Which is larger?
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Measuring Length
How many millimeters are in 1 centimeter?
2.8
28
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Ruler http//www.k12math.com/math-concepts/measur
ement/ruler-cm.jpg
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Ladder Method
KILO1000Units
HECTO100Units
DEKA10Units
DECI0.1Unit
CENTI0.01Unit
MILLI0.001Unit
4 km _________ m
How many jumps does it take?
4.
4000 m
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Practice Problems 1-5
Move 3 spaces left
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1. 2000mg ____________g
2. 5 L _______ mL
3. 16 cm _______ mm
4. 104 km ___________m
5. 198 g __________ kg

5000
Move 3 spaces right
160
Move 1 space right
104,000
Move 3 spaces right
0.198 or .198
Move 3 spaces left
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Extra Notes
It would be a good idea to put the following
acronym in the box at the bottom of your page.
(You will need to memorize the Metric Ladder
for tests)
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