Chapter 4: Metric System Standard Units & Metric Conversions What is Metrics? Also Called International System (SI) Based on factors of ten.
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Transcript Chapter 4: Metric System Standard Units & Metric Conversions What is Metrics? Also Called International System (SI) Based on factors of ten.
Chapter 4: Metric System
Standard Units &
Metric Conversions
What is Metrics?
Also Called International
System (SI)
Based on factors of ten
Why use metrics in
science?
Factors of ten are much
easier to work with.
Research does not just occur
in the U.S.—a global
community requires a
universal measuring system.
Standard Units
Length meter
Mass kilogram
Time second
Temperature Deg. Celsius
Amount of substance mole
Derived Units
Area Square meter (m2)
Volume Cubic meter (m3)
Though this is the standard,
we will mostly use liters!
Density Kg/m3
Concentration Moles/liter
Energy Joules (force x length
Metric Prefixes
Each prefix signifies an
amount of base units
represented.
King Henry Died by drinking
cockroach milkshakes!!!
KiloHectoDekaBase unit
DeciCentiMilli-
1000
100
10
.1 or 1/10th
.01 or 1/100th
.001 or 1/1000th
Other prefixes
Mega- 1 000 000
Giga- 1 000 000 000
Tera- 1 000 000 000 000
Micro- .00001 or 1/1000000th
Nano- .000000001 or 1/billon
Pico- .000000000001
Sample Problems
268 grams =_____milligrams
5,638 centimeters =___meters
8 meters =_____Kilometers
Sample Problems
.0096 Kilograms =_____decigrams
13 liters =_____deciliters
2.85 milliliters =___centiliters
2.5 centigrams =_____grams
Sample Problems
28 Decameters =____Kilometers
.03 Kilometers =____centimeters
8 liters =____deciliters