An object has a mass of 140 g and a volume of 100 cu. cm. Find the density of this object.

• 1 g/cc

• 2 g/cc

• 0.14 g/cc

• 1.4 g/cc

Density is the relationship between

• mass and time

• mass and volume

• length and time

• length and volume

When water freezes and becomes a solid its density

• increases

• decreases

• stays the same

Regardless of size the density of solids that are pure substances and homogeneous solutions

• stay the same

• increase by size

• decrease by size

Calculate the density of a marble that weighs 10 grams and has a volume of 5cm³

• 2 g/cm³

• 50 g/cm³

• 15 g/cm³

Calculate the volume of wooden block that has a density of 40 g/cm³ and mass of 80 grams.

• 2cm³

• 320cm³

• 40cm³

Calculate the mass of a liquid that has density of 10g/ml and a volume of 60ml.

• 6g

• 60g

• 600g

Liquid water

• is more dense than ice

• is less dense than ice

• has the same density as ice

Water

• expands when it freezes

• contracts when it freezes

• neither contracts nor expands

Density describes

• how much something weighs

• how big something is

• how tightly compacted molecules are in a substance