Density Homework

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Which lab tool might you use to measure the volume of a liquid?

• electric scale
• bunsen burner
• test tube
• graduated cylinder

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 30.0 cm³
• 25.0 cm³

An empty beaker has a mass of 60 grams.  When mercury is added to the graduated cylinder, it has a mass of 200 grams. What is the mass of the mercury?

• 140 grams
• 200 grams
• 140 mL
• 260 g

Find the volume of this piece of brass.  

• 50 g
• 10 cm
• 6 cm³
• 12 cm³

This is a measurement of the amount of matter, or 'stuff', in an object or substance.

• volume
• density
• mass
• length

Density is...

• the amount of mass in an object
• the amount of space an object takes up
• the amount of mass in a given space
• the weight of an object

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

What units can be used to express density?

• g/mL
• grams
• millimeters
• milliliters

True or False:  The density of a specific type of material never changes.  

• True
• False