Lesson 1 Systems of mesurement ­ Class 1.notebook
* For a bonus on your Physics Test,
determine how fast Usain Bolt ran in km/
hr
http://www.youtube.com/watch?v=2O7K­8G2nwU
Systems of Measurement
­ Canada uses 2 systems of measurement
­ the Système international d'unités­­­otherwise known as the metric system
­ the imperial system
Why do you think we use 2 systems?
The Metric System
& Conversion
• The metric system is referred to as the System International (SI)
• Was developed in France in the 1790's. Canada began using the SI system
in the mid 1970's
• It is convenient to use because the units are related by powers of 10.
• The standard SI unit of length is the meter(m) , litre(l) , gram (g)
Chart for conversions:
multiply
Kilo…
hecto…
deka…
metre/litre/gram
deci…
centi…
milli..
divide
• Every step upward (or to the left) on the chart you are dividing by 10 or moving the
decimal one place to the left for each step.
• Every step downward (or to the right) you are multiplying by 10 or moving the decimal
one place to the right for each step.
Example:
Complete the following using the conversion chart below:
kilo…
hecto…
deka…
m/L/g
deci…
centi…
milli..
A) 3 meters = ___________ centimeters
B) 40 liters = ___________ deciliters
C) 600 milligrams = __________ grams
D) 5 kilometers = ___________ hectometers
E) 70 centimeters = _________ meters
F) 900 deciliters = __________ dekaliters
G) John‛s pet python measured 600 centimeters long. How many meters long was the
snake?
H) Faith weighed 5 kilograms at birth. How many grams did she weigh?
I) Jessica drank 4 liters of tea today. How many deciliters did she drink?
Lesson 1 Systems of mesurement ­ Class 1.notebook
Metric Conversion Worksheet
1) 60mm = _______m
2) 579000000mm = __________km
3) 0.934cm = ______mm 4) 0.6921m = ___________km
5) 20800000cm = __________km. 6) 758.0048 m = __________mm
7) 21200 cm = ____________m 8) 0.0000072 km = ______________mm
9)172.14 cm = ____________ m 10) 9.000658 km = _____________cm
11) 0.00004 km = __________ m 12) 315 m = _______________ mm
13) 161000000 mm = ________ km 14) 809.008288 km = _______________ cm
15) 390 cm = _____________ mm 16) 57700000 cm = _________________ km
17) 863.05 m = ___________ mm 18) 46.3 mm = ____________________ km
19) 203 m = _____________ cm Part 2 Answers
1) 0.06326 l 2) 0.0005 kl
3) 491 kl
4) 5.1 cl
5) 47.900286 l
6) 8697 ml
7) 922 ml
8) 0.0068 kl
9) 50500 cl
10) 2.03535 kl 20) 6940 mm = ___________________ cm