What to study – Measurement Exam
English system of measurement – inches, feet, yards, miles, ounces, pounds, etc…
Metric system of measurement – mm, cm, L, mL, cm3, Celsius
Prefixes:
Kilo = 1000
Centi = 0.01
Milli = 0.001
Length:
- metric ruler
- mm, cm, m, km
Volume: amount of SPACE an object takes up
· 1mL = 1 cm3
· Volume of a liquid: Use a graduated cylinder à (L or mL)
o Measure at the bottom of the curve
· Volume of a regular solid: LENGTH X WIDTH X HEIGHT (cm3)
· Volume of an irregular solid: displacement (mL)
o Measure the volume of the liquid
o Drop the solid into the graduated cylinder à measure the volume
o Subtract the original volume from the volume with the object in the grad cylinder
Mass: the amount of MATTER an object has (grams)
· Measured with a triple beam balance
Density: mass / volume (g/ cm3-for a solid) (g/ cm3-for a liquid)
· Density of water = 1 g/ mL
· Density of an object ALWAYS REMAINS THE SAME
· Objects that FLOAT in water have a density of LESS than 1 g/ mL
· Objects that SINK in water have a density of MORE than 1 g/ mL
Temperature: measures with a thermometer
· Fahrenheit Scale – not metric scale
· Celsius Scale – metric scale
o Water freezes = 0°C
o Water boils = 100°C
o Human body temp = 37°C
Metric Conversions – USE THE STAIRS!!!