Find Density

A block has a mass of 20.0 g and a volume of 40.0 cm³. What is its density?

• 2.0 g/cm³

• 1.2 g/cm³

• 0.5 g/cm³

• 4.0 g/cm³

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

• 9 mL

• 7 g/cm³

• 28 g/cm³

• 1/7 g/cm³

A bar of copper has a mass of 216g and a volume of 24cm³. What is the density of copper?  

• 9g/cm3

• 11g/cm3

• 5184g/cm3

• 322mL

Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.  

(Hint: find the volume first!)

• 13 g/cm3

• 2 g/cm3

• 10 g/cm3

• 8  g/cm3

The Clarkston High School gymnasium has a maximum population density of 1.45 people/square meter. If the area of the gymnasium is 400 square meters, how many people can fit into the gym?

• 580 people

• 276 people

• 1,020 people

• 674 people

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population density

A toy pyramid (not shown) is made from poly(methyl methacrylate), better known by its trade term Lucite. The toy pyramid has a regular hexagonal base of 15 cm² and a height of 4 cm. In the base of the pyramid, there is a semispherical indentation 2 cm in diameter. If the pyramid weighs 21.129 g, then what is the density of Lucite? (Density equals mass divided by volume.)

• 1.06 g/cm³

• 1.18 g/cm³

• 2.09 g/cm³

• 6.51 g/cm³

A block of aluminum occupies a volume of 15.0 mL and weighs 45.0 g. What is its density?

• 3 g/mL

• 0.3333 g/mL

• 675 g/mL

• I have no idea

The mass of an object is 30 g.  The volume is 5 mL.  What is the density of this object?

• 3 g/cm

• 6 g/mL

• 8 g

A piece of copper has a mass of 89g and a volume of 10.0 cm3. What would be the density of the copper?

• 0.89 g/cm3

• 89 g/cm3

• 8.9 g/cm3

• 890 g/cm3

What is the density of a plastic ball that has a volume of 6cm³ and a mass of 12g? 

• 2g/cm³

• 0.5g/cm_³

• 72g/cm³

• 4mL