Measurement Systems and Units
What is Measurement?
Uses numbers to describe objects and events.
Metrology-is the study of measurement
Why do we need a standardized method of
measurement?
Common System of Measurement
Metric System
Base 10 system created by Gabriel Mouton in 1670.
1790 France pushed for common measurement
Most Countries in the World use only this system
Customary System
Primarily used by the US.
Inches, ounces, miles, etc.
SI units
International system of units
SI-comes from French Systeme International d’unites.
Seven Basic Units.
Meter
Second
Kelvin
Kilogram
Mole
Ampere
Candela
Metric Ladder
Length
The basic unit for length is the meter
Use rulers and meter sticks to measure length
1 meter = 3.28 feet
Mass
The basic unit for mass is the Kilogram
Use a balance or scale to find mass
Temperature
The basic unit for temperature is either Celsius or
Kelvin
Use a thermometer
Volume
The basic unit for volume is Liter
Use graduated cylinders to measure liquid volume
Length x width x height is also used to find volume
Time
The basic unit of time is seconds
Converting Metric to Metric
If you are
going from a
smaller unit to
a larger unit,
you divide, or
move your
decimal point
to the left.
Converting Metric to Metric
If you are going
from a larger unit
to a smaller unit,
you multiply, or
move your
decimal point to
the right.
Discover the importance of standardized methods of measurement, the common systems of measurement such as the Metric System and Customary System, SI units, prefixes for unit conversions, and basics of measuring length, mass, temperature, volume, and time. Learn how to convert metric units effectively.
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Presentation Transcript
What is Measurement? Uses numbers to describe objects and events. Metrology-is the study of measurement Why do we need a standardized method of measurement?
Common System of Measurement Metric System Base 10 system created by Gabriel Mouton in 1670. 1790 France pushed for common measurement Most Countries in the World use only this system Customary System Primarily used by the US. Inches, ounces, miles, etc.
SI units International system of units SI-comes from French Systeme International d unites. Seven Basic Units. Meter Second Kelvin Kilogram Mole Ampere Candela
Prefix Abbreviation # of Base unit to make the other prefixes Example Kilo k 1,000 Kilometer km Hecto h 100 Hectometer hm Deka da 10 Dekameter dam Base Unit meter, gram, liter, second b m, g, l, s 1 Meter m; Gram g; Liter l; Second s Deci d 0.1 Decimeter dm Centi c 0.01 Centimeter cm Milli m 0.001 Millimeter mm
Length The basic unit for length is the meter Use rulers and meter sticks to measure length 1 meter = 3.28 feet
Mass The basic unit for mass is the Kilogram Use a balance or scale to find mass
Temperature The basic unit for temperature is either Celsius or Kelvin Use a thermometer
Volume The basic unit for volume is Liter Use graduated cylinders to measure liquid volume Length x width x height is also used to find volume http://2009rt8sciafifa.files.wordpress.com/2009/11/measuring-volume.gif?w=197h=166
Time The basic unit of time is seconds
Converting Metric to Metric If you are going from a smaller unit to a larger unit, you divide, or move your decimal point to the left.
Converting Metric to Metric If you are going from a larger unit to a smaller unit, you multiply, or move your decimal point to the right.
