Density Notes With Answers

Physical Science Handout

Intro Unit: Measurement

Density MASS Definitio n

VOLUME

The amount of matter in an object

The amount of space an object occupies

The amount of compactness of a substance

g, kg

cm3, or mL

g/cm3 or g/mL

Units

Methods to determin e

DENSITY

Weigh on a triple beam balance

Density of H2O (l) =

1.00 g/mL

(what about precision for density?) Some common densities

Material Air Wood (oak) Corn oil Water Plastic Glycerol

Formulas, Water displacement, Graduated cylinder

Density (g/cm3) 0.001 0.710 0.925 1.00 1.17 1.26

ρ = m/V

Physical Science Handout

Rubber Corn syrup Steel alloy

Intro Unit: Measurement

1.34 1.38 7.81

So, what will float in water? Can the densities of materials change? Density of a material can help identify the substance