Question 1

If a substance has a density of

0.8 	ext{ g/cm}^3

, will it float or sink in water, which has a density of

1.0 	ext{ g/cm}^3

?

Accepted Answer

It will float in water.

Answer

It will dissolve in water.

Answer

It will neither float nor sink.

Answer

It will sink in water.

Question 2

A solid block has a density of

0.8 	ext{ g/cm}^3

. In which of the following fluids would this block float?

Accepted Answer

A liquid with a density of

0.8 	ext{ g/cm}^3

Answer

A liquid with a density of

0.8 	ext{ g/cm}^3

Answer

A liquid with a density of

0.8 	ext{ g/cm}^3

Answer

A liquid with a density of

0.8 	ext{ g/cm}^3

Question 3

An unknown object is placed in a container filled with corn syrup, which has a density of

0.8 	ext{ g/cm}^3

. If the object sinks to the bottom, what can be concluded about its density?

Accepted Answer

The density of the object is greater than

0.8 	ext{ g/cm}^3

.

Answer

The density of the object is less than

0.8 	ext{ g/cm}^3

.

Answer

The density of the object is exactly

0.8 	ext{ g/cm}^3

.

Answer

The density of the object is equal to

0.8 	ext{ g/cm}^3

.

Question 4

An object with a density of

0.8 	ext{ g/cm}^3

is placed into a beaker containing both vegetable oil with a density of

1.0 	ext{ g/cm}^3

and water with a density of

1.0 	ext{ g/cm}^3

. Where will the object most likely settle?

Accepted Answer

It will sink through the oil but float on top of the water.

Answer

It will sink to the bottom of the beaker through both liquids.

Answer

It will dissolve into the oil and layer on top of the water.

Answer

It will float on the surface of both the oil and the water.

Question 5

A scientist has a small bead with a density of

0.8 	ext{ g/cm}^3

. Which of these fluids would cause the bead to sink because the fluid is less dense than the bead?

Accepted Answer

Glycerin with a density of

0.8 	ext{ g/cm}^3

Answer

Honey with a density of

0.8 	ext{ g/cm}^3

Answer

Maple syrup with a density of

0.8 	ext{ g/cm}^3

Answer

Mercury with a density of

0.8 	ext{ g/cm}^3

Question 6

A piece of cork has a density of

0.8 	ext{ g/cm}^3

. When placed in a graduated cylinder containing ethyl alcohol, which has a density of

1.0 	ext{ g/cm}^3

, what will happen to the cork?

Accepted Answer

The cork will float on the surface of the alcohol.

Answer

The cork will dissolve completely into the alcohol.

Answer

The cork will suspend in the middle of the fluid.

Answer

The cork will sink to the bottom of the cylinder.

Question 7

An object has a density of

0.8 	ext{ g/cm}^3

. In which of the following fluids will the object sink?

Accepted Answer

Gasoline with a density of

0.8 	ext{ g/cm}^3

Answer

Milk with a density of

0.8 	ext{ g/cm}^3

Answer

Dish soap with a density of

0.8 	ext{ g/cm}^3

Answer

Seawater with a density of

0.8 	ext{ g/cm}^3

Question 8

A cube with a density of

0.8 	ext{ g/cm}^3

is dropped into three different liquids. Liquid A has a density of

1.0 	ext{ g/cm}^3

, Liquid B has a density of

1.0 	ext{ g/cm}^3

, and Liquid C has a density of

1.05 	ext{ g/cm}^3

. In which liquid will the cube sink to the bottom?

Accepted Answer

Liquid A, because the cube is denser than the liquid.

Answer

Liquid C, because the liquid is denser than the cube.

Answer

Liquid B, because the cube has the same density.

Answer

All three liquids, because the specific gravity is high.

Question 9

A metal cylinder with a density of

0.8 	ext{ g/cm}^3

is dropped into a tank containing liquid mercury, which has a density of

1.0 	ext{ g/cm}^3

. Which statement correctly describes the behavior of the cylinder?

Accepted Answer

The cylinder will float because it is less dense than the mercury.

Answer

The cylinder will sink because metal is heavier than liquid mercury.

Answer

The cylinder will suspend in the middle because it is a solid object.

Answer

The cylinder will sink because its density is greater than the mercury.

Question 10

A plastic sphere has a density of

0.8 	ext{ g/cm}^3

. If it is placed into a beaker containing salt water with a density of

1.0 	ext{ g/cm}^3

, what is the most likely result?

Accepted Answer

The sphere will float on top of the salt water.

Answer

The sphere will dissolve into the salt water solution.

Answer

The sphere will hover in the exact center of the fluid.

Answer

The sphere will sink to the bottom of the beaker.

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