Measurement in Measurement in MetricsMetrics

AC ScienceAC Science

Metric SystemMetric System

Systems InternationaleSystems Internationale AKA “SI”AKA “SI”

Based on factors of 10Based on factors of 10

LENGTHLENGTH

Length: distance between 2 points, Length: distance between 2 points, measured in measured in metersmeters. . Symbol for Symbol for unit: munit: m..

Tool: meter stick or metric rulerTool: meter stick or metric ruler

MASSMASS

Mass: amount of space an object Mass: amount of space an object takes up, measured in takes up, measured in gramsgrams. . Symbol for unit: gSymbol for unit: g..

Tools: triple beam balance (or Tools: triple beam balance (or electronic scale), or spring scaleelectronic scale), or spring scale

AREAAREA

Area: length times width, Area: length times width, symbol symbol for unit: cmfor unit: cm22

Tool: meter stickTool: meter stick

TEMPERATURETEMPERATURE Temperature: measure of heat in an objectTemperature: measure of heat in an object American Standard – unit is Fahrenheit. American Standard – unit is Fahrenheit.

Symbol for unit: Symbol for unit: 00F.F. (Degrees Fahrenheit) (Degrees Fahrenheit) Metric Scale– unit is Celsius. Metric Scale– unit is Celsius. Symbol for Symbol for

unit: unit: 00CC. (Degrees Celsius or Centigrade). (Degrees Celsius or Centigrade) Metric Scale – unit is Kelvin. Metric Scale – unit is Kelvin. Symbol for Symbol for

unit: K.unit: K. (Kelvin). (Kelvin). ** ONLY used when ** ONLY used when discussing ABSOLUTE ZERO!!discussing ABSOLUTE ZERO!!

Tool: thermometerTool: thermometer

VOLUMEVOLUME Volume: amount of matter an object contains, Volume: amount of matter an object contains,

unit is unit is literliter. . Symbol for unit: L (if the object is a liquid Symbol for unit: L (if the object is a liquid

or irregular solid) or irregular solid) - normally we use - normally we use milliliters (ml). Use displacement method milliliters (ml). Use displacement method for irregular solids!for irregular solids!

OR cmOR cm33 (if the object is a regular solid). (if the object is a regular solid). Volume = length times width times Volume = length times width times height for a regular solid.height for a regular solid.

Tools: meter stick (for regular solid)Tools: meter stick (for regular solid) beaker or graduated cylinder for liquidbeaker or graduated cylinder for liquid Graduated cylinder and water for irregular – Graduated cylinder and water for irregular –

displacement methoddisplacement method

DENSITYDENSITY Density: the amount of matter in a given amount Density: the amount of matter in a given amount

of spaceof space Density = mass divided by volume.Density = mass divided by volume. D = m/vD = m/v Measured in g/cmMeasured in g/cm33 (if the object is a solid) (if the object is a solid) OR g/ml (if the object is a liquid or an OR g/ml (if the object is a liquid or an

irregular solid)….irregular solid)…. Tools: balance or scale for finding massTools: balance or scale for finding mass

Beaker or graduated cylinder for finding volume Beaker or graduated cylinder for finding volume of liquidof liquid

Graduated cylinder and water for finding volume Graduated cylinder and water for finding volume of irregular solid (displacement method)of irregular solid (displacement method)