Density Answers

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This chart shows the volumes of four different objects.If the objects all have the same mass, which object is the most dense?

Question illustration
A
Object 1
B
Object 2
C
Object 3
D
Object 4
2
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Mason notices that his boat sinks lower into the water in a freshwater lake than in the ocean. What could explain this?

A
The boat is more dense in salt water.
B
The boat is less dense in salt water.
C
Salt water is less dense than freshwater.
D
Salt water is more dense than freshwater.
3

Which object will sink in freshwater, which has a density of 1.0 g/cm3?

A
Object 1, which has a density of .08 g/cm3
B
Object 2, which has a density of 1.9 g/cm3
C
Object 3, which has a density of .06 g/cm3
D
Object 4, which has a density of .03 g/cm3
4

If the density and volume of an object is known, what can also be found?

A
the mass of the object
B
the shape of the object
C
the size of the object
D
the thickness of the object
5

What is the equation for density?

A
D =
Option A
B
D =
Option B
C
D =
Option C
D
D = mv2
Option D
6

Cubes are three-dimensional square shapes that have equal sides. What is the density of a cube that has a mass of 12.6 g and a measured side length of 4.1 cm? (Density: D = )

Question illustration
A
.1828 g/cm3
B
.3254 g/cm3
C
3.073 g/cm3
D
68.92 g/cm3
7

Gerald is fishing. He uses a bobber that floats on the surface to show him if the line is being moved, and a lure that sits below the surface to attract fish.Which statement accurately describes the densities of these two items?

A
The bobber and lure are more dense than the water.
B
The bobber and lure are less dense than the water.
C
The bobber is more dense than the water, and the lure is less dense than the water.
D
The bobber is less dense than the water, and the lure is more dense than the water.
8

Which describes how to calculate density?

A
mass divided by volume
B
volume divided by mass
C
mass added to volume
D
volume subtracted from mass
9

Janice measured the mass and the volume of an object. She then determined the density of the object by dividing the object’s mass by its volume (D = ). Which value would most likely represent the density of the object?

Question illustration
A
–1 g/cm3
B
4 m/s
C
–3 m/s
D
6 g/cm3
10

What happens when an object has a density greater than that of the surrounding liquid?

A
The object will sink.
B
The object will float.
C
The object will become a solid.
D
The object will become a gas.

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