Objective: Identifying what units are used for different measurements
and how to convert measurements.
The Metric System
International System of UnitsInternational System of Units (SI)
Seven units of measurement known as the basic set which other units are derived from
International System of UnitsUnit Symbols
Symbols used to define a number based on what is being measuredLength = meter (m)Mass = kilogram (kg)Force = newton (N)Time = second (s)Area = square meters (m2)Volume = cubic meters (m3)Density = grams per centimeters
cubed(g/cm3)Temperature = kelvin (K)
ConversionsTemperature Conversion
°F to °C = 5/9(°F - 32 °)°C to °F = 9/5(°C) + 32 °°C to K = °C + 273.16
Example 1: Convert 32 °F to °C.
Example 2: Convert 29 °C to K.
Conversionskilo
hecto
deka
Base Unit de
ci
centi
milli
Steps:1. Find the prefix.
(beginning of the word)2. Find out what you are
converting to.3. Count the number of
stairs you need to move.4. What direction did you
move in?5. Move the decimal point
the same to same number of stairs and the same direction of motion.
Conversionkilo
hecto
deka
Base Unit de
ci
centi
milli
Example 1: Convert 45 centimeters into meters.
Example 2: Convert 9 kilometers into decimeters
CalculationsDensity
The amount of mass (g) in a given volume (cm3) of an object
Density = mass / volumeHigh Density = SinkLow Density = FloatWater has a density of 1g/cm3