Density

The tool used to measure the mass of a substance or object is a ______________.

• balance
• graduated cylinder
• ruler
• thermometer

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 units of measurement are used for volume?

• grams
• centimeters
• grams/milliliter
• milliliter

What is the formula for density?

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

An object with which of the following densities will float on water?

• 0.7 g/cm³

• 1.2 g/cm³

• 3.5 g/cm³

• 11.4 g/cm³

A can of Coke will sink in a bowl of water.  A can of Diet Coke will float in a bowl of water.  What does this tell you about the density of the Diet Coke?

• it is bigger than 1g/cm³

• it is smaller than 1g/cm³

• it is equal to 1g/cm³

• it is equal to -1g/cm³

Why do ice cubes float in a  glass of water?

• the ice cubes are more dense than the water
• the water is more dense than the ice cubes
• the water is more dense than the glass
• the ice is more dense than the glass

Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm³.  Which of these metals would sink below the mercury if dropped into a container of mercury?

• gold (density=19.3 g/cm³)

• lead (density=11.4 g/cm³)

• iron (density=7.9g/cm³)

• aluminum (density=2.7g/cm³)

What is the density of water?

• 0 g/ml
• 1 g/ml
• 10 g/ml
• 100 g/ml

A piece of copper has a mass of 89g and a volume of 10 cm³.  What would be the density of the copper?

• 0.89 g/cm³

• 89 g/cm³

• 8.9 g/cm³

• 890 g/cm³