1. I. Units of Measurement Number vs. Quantity SI Base Units & Prefixes

2. A. Number vs. Quantity
Quantity - number + unit
UNITS MATTER!!

3. B. SI Units Quantity Base Unit Symbol Length Mass Time Temp meter
kilogram
second
kelvin m kg s K
Current
ampere A

4. B. SI Units Quantity Base Unit Symbol Velocity Force Energy m/s m/s2 N
Acceleration
Force
Energy
Meter/second
Meter/second2
Newton
Joule
m/s
m/s2 N J
Power
Watts W

5. “King Henry Died By Drinking Chocolate Milk!”
SI Prefixes
Prefix
kilo
hecto
deka
base
deci
centi
milli
Symbol k H D bu d c m
“King Henry Died By Drinking Chocolate Milk!”