Density Practice

Based on the diagram below, rank the three objects from least dense to most dense.

• Object X, object Z, object Y.
• Object Z, object Y, object X.
• Object X, object Y, object Z.
• Object Y, object Z, object X.

What property is being measured in the image below?

• mass
• density
• volume
• height

A ball has a mass of 23.6 grams and a volume of 14.0 cubic centimeters (cc). What is its density?

• 0.42 g/cc
• 1.69 g/cc
• 19.6 g/cc
• 470.4 g/cc

Objects 1 and 2 float as shown in the beaker below. The density of the liquid in the beaker is 3.2 g/mL. Which of the densities given below are possible values for the densities of the two objects?

• Density of object 1 = 4.4 g/cm3; Density of object 2 = 4.0 g/cm3
• Density of object 1 = 3.0 g/cm3; Density of object 2 = 1.8 g/cm3
• Density of object 1 = 1.6 g/cm3; Density of object 2 = 2.9 g/cm3
• Density of object 1 = 2.5 g/cm3; Density of object 2 = 3.8 g/cm3

Identical objects are placed in Beaker A and in Beaker B. The objects float as shown in the diagrams below. What can you conclude about the liquid in each of the beakers?

• Both liquids are less dense than the objects.
• The liquid in Beaker A has a greater density than the objects. The liquid in Beaker B is less dense than the objects.
• The liquid in Beaker A has a greater density than the liquid in Beaker B.
• The liquid in Beaker B has a greater density than the liquid in Beaker A.

Fill in the blank: An object is most likely to sink in water if _________________.

• it has a large mass
• it has a large volume
• it has a high density
• it has a low density

Three balls were measured and placed in a liquid. Based on the following data, what could be the density of the liquid?

• 1.1 g/mL
• 1.0 g/mL
• 0.9 g/mL
• 0.8 g/mL

According to the picture, which is the least dense?

• the chess piece
• the toy soldier
• the liquid in the container
• There is no way to tell.

Objects 1 and 2 are placed in the beaker below. The density of the liquid in the beaker is 2.0 g/mL. Which of the densities given below are possible values for the densities of the two objects?

• Density of object 1 = 0.8 g/cm3; Density of object 2 = 3.0 g/cm3
• Density of object 1 = 3.0 g/cm3; Density of object 2 = 0.8 g/cm3
• Density of object 1 = 3.8 g/cm3; Density of object 2 = 3.0 g/cm3
• Density of object 1 = 1.5 g/cm3; Density of object 2 = 0.8 g/cm3

An object with unknown density is tested in two beakers. Beaker 1 contains liquid with a density of 1.5 g/mL, and Beaker 2 contains liquid with a density of 2.0 g/mL. The object sinks in both beakers. Which of the following statements about the object's density is true?

• The object's density is less than 1.5 g/cm3.
• The object's density is exactly 1.5 g/cm3.
• The object's density is greater than 1.5 g/cm3 and less than 2.0 g/cm3.
• The object's density is greater than 2.0 g/cm3.