MEASUREMENT 4 August 2015

Bell Work 8/16  What do tool could you use to measure distance travelled?

International System of Measurement  is accepted as the standard for _________________ throughout the most of the world.  In the United States we use the ______________ _______________ as our system of measurement.

 Scientists around the world use the _______________ _______________ of Units, or SI, because SI uses certain metric units that are based on units of _________.  ______________ are used with units to change their names to larger or smaller units.

 Base units used in SI are the meter, __________, gram, and _____________.

Base Units Base UnitMeasurement Meter_________________ Volume of a liquid (volume of a solid is unit 3 ) _______________Mass Second_______________

Each measurement is measured by a different ___________. MeasurementToolUnit Length/DistanceRuler/meter stick_____________ Triple beam balance _____________ Weight______________Newton Volume Liquid: ______________ Solid: _____________ Liquid: ______________ Solid: ______________ ______________thermometer______________ Time______________

 Prefixes are attached to ________ ________ to form larger or smaller units of measurement.

Prefixes Pre-fixDefinition (value) of Pre-fix kilo____ ______________ _________one hundred deka_________________ ______________meter, gram, liter, second ___________one tenth centione hundredth milli____ ______________

 A ______________ is used to represent each ______________ and base unit.

Symbols UnitSymbol _________k hecto______ Dekada _________g meter______ liter______ _________s decid _________c m

 NOTE: The base unit must be the ________________.  (Example: you _____________ convert 1 meter to 100 kilograms)

Practice Examples- Convert the following (remember kilo means 1000): 1) 1km = ___________ meters? (larger to smaller)  Answer: 1km x 1000 = _______ m 2) 10 g = ___________ kg? (smaller to larger)  Answer: 10g divided by 1000 = __________kg

Acronym for pre-fixes: king henry Died by drinking chocolate milk

Stair Step Method  A short cut that may also be used is the stair step method.

When converting from one unit to another: 1. Move the decimal ________ space for ___________ step taken on the stair case. 2. Move the decimal to the ___________ if you go ________ the stair case. 3. Move the decimal to the ___________ if you go ________ the stair case.

Example- Convert the following: 1) 10 hm= ____________ dm?  Moving from the h-step to the d-step requires three steps to the right on the staircase.  Therefore, move the decimal three places to the right.  Answer: 10 hm = ____________ dm

Example- Convert the following: 2) 5 cL= ____________ dL?  Moving from the c-step to the d-step requires one step to the left on the staircase.  Therefore, move the decimal one place to the left.  Answer: 5 cL = ____________ dL