Density

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

True or false: A copper penny and a copper pot have the same density

• True

• False

True or False: Solids of heterogeneous mixtures will always have the same densities

• True

• False

During a phase change which of the following will change?

• mass

• volume

• both mass and volume

As heat energy is added the particles inside a substance

• gain energy

• spread out

• move around more

• stand still

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