Chapter 5.3, Problem 7RQ

(a)

Interpretation Introduction

Interpretation: The denser block needs to be identified.

Concept Introduction: The density of an object is mass per unit volume of an object:

  $\text{Density =}\frac{\text{mass}}{\text{volume}}$

The increasing order of volume for solid, liquid and gas is as follows:

Gas>Liquid>Solid

And increasing order of density is given below:

Solid>Liquid>Gas

Answer to Problem 7RQ

The orange block is denser.

Explanation of Solution

In general, density is calculated by dividing mass by volume. Substances with larger density contain greater mass and smaller volume. In this figure, the orange block is heavier than the blue block that means orange block has more weight than blue one. With increase in volume, density of the substance decreases. Similarly, with increase in mass, density of the substance increases.

(b)

Interpretation Introduction

Interpretation: The denser block needs to be explained.

Concept Introduction: The density of an object is mass per unit volume of an object:

  $\text{Density =}\frac{\text{mass}}{\text{volume}}$

The increasing order of volume for solid, liquid and gas is as follows:

Gas>Liquid>Solid

And increasing order of density is given below:

Solid>Liquid>Gas

Answer to Problem 7RQ

The orange block is denser.

Explanation of Solution

In general, density is calculated by dividing mass by volume. Substances with larger density contain greater mass and smaller volume. In this figure, the orange block is heavier than the blue block that means orange block has more weight than blue one. With increase in volume, density of the substance decreases. Similarly, with increase in mass, density of the substance increases. From the figure, it is clear that orange block is denser than the blue one.

(c)

Interpretation Introduction

Interpretation: The denser block needs to be explained.

Concept Introduction: The density of an object is mass per unit volume of an object:

  $\text{Density =}\frac{\text{mass}}{\text{volume}}$

The increasing order of volume for solid, liquid and gas is as follows:

Gas>Liquid>Solid

And increasing order of density is given below:

Solid>Liquid>Gas

Explanation of Solution

In general, density is calculated by dividing mass by volume. Substances with larger density contain greater mass and smaller volume. In this figure, the orange block and the blue block both have equal weight. So, from the figure it is not possible to determine which one is denser.

(d)

Interpretation Introduction

Interpretation: The denser block needs to be explained.

Concept Introduction: The density of an object is mass per unit volume of an object:

  $\text{Density =}\frac{\text{mass}}{\text{volume}}$

The increasing order of volume for solid, liquid and gas is as follows:

Gas>Liquid>Solid

And increasing order of density is given below:

Solid>Liquid>Gas

Answer to Problem 7RQ

The blue block is denser than orange block.

Explanation of Solution

In general, density is calculated by dividing mass by volume. Substances with larger density contain greater mass and smaller volume. In this figure, the blue block is heavier than the orange block that means blue block has more weight than orange one. With increase in volume, density of the substance decreases. Similarly, with increase in mass, density of the substance increases. From the figure, it is clear that the blue one is denser.