2 Standards of Measurement Exact quantity used to compare measurementsU.S. uses English & metric standardsMost other nations all metric systemEnglish Vs. Metric SystemYards vs. MetersGallons vs. LitersPounds vs. GramsMiles vs. KilometersFahrenheit vs. Celsius
3 Metric System SI System System International or Metric System Accepted by scientist throughout the worldUses a base unit with prefixesBased on units of 10
4 Metric System Base Units MeterLitersGramSecondCelsius/Kelvin measures temp
5 Metric Prefixes Metric Prefixes Use prefixes with base units Kilo = 1000Hecto = 100Deca = 10Base Units (g, L & m) = 1Deci = 1/10 or 0.1Centi = 1/100 or 0.01Milli = 1/1000 or 0.001
7 Length Length Distance between two points Metric base unit is the meter
8 Volume Volume Amount of space occupied by an object Metric base unit is LiterVolume of a solid is measured with unit of lengthLength x Width X HeightL(1) x L(2) x L(3)cm³
9 Volume Volume of a liquid Volume of a solid Use graduated cylinders for precise volumeVolume of a solidUse ruler or meter stick to measure 3 dimensions
10 MassMassAmount of matter in an objectMetric base unit is the gram
11 Density Density The mass per unit volume of an object Density equals mass of an object divided by the volumeD = m/vUnit for density is g/cm³ OR g/mLDensity < 1 object floatsDensity > 1 object sinks
12 Time and Temperature Time Temperature Interval between two events Unit of measurement is secondsTemperatureHow hot or cold something isUnit of measurement is °Celsius or °Kelvin
13 Temperature Conversions Temp ConversionsWater boils at 100° C and 212° FWater freezes at 0° C and 32°FC = (F – 32) x .56F = (C x 1.8)
14 Example ProblemsFind the volume of a box that has a length of 2.3 mm, height of 3.4 mm and a width of 2.1 mm.2. Find the width of a container that has a volume of 120 cm³, length of 10 cm and height of 5 cm.3. Find the density of an object that has a mass of 2.1 mg and volume of 9.2 mm³.4. Find the mass of an object that has a density of 0.78 g/ml and a volume of 16 ml.
15 Example Problems 1. Convert the following: 97° F to C 12°F to C 45° C to F97° F to C12°F to C65° C to F
Your consent to our cookies if you continue to use this website.