Density Practice

What is the formula for density?

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

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 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?

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

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

What is the measuring unit for mass?

• centimeter 
• millimeter 
• grams 
• pounds

A crayon has a mass of 10g and volume of 5 mL. What is the density?

• 30 g/mL
• 15 g/mL
• 1 g/mL
• 2 g/mL

Frank has an eraser. It has a mass of 4 g, and a volume of 2 cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

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

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

What is the mass of a 25 cm³  liquid if it has a density of 5 g/cm³?

• 125 g

• 5 g

• 30 g

• .2 mL