Calculate Density to Identify an Unknown Substance

A diagram is provided. What is the volume of the block of metal?

• 15 cm3

• 50 cm3

• 150 cm3

Density is a physical property of matter and can be used to classify substances. Density is calculated by which of the following?

• d = V/m

• d = m/V

• d = W/V

• d = m/W

An image of triple beam balance and object is provided. What is the mass of the object on the triple beam balance?

• 303.4 g

• 370.4 g

• 373.0 g

• 373.4 g

Density is the measure of how much mass is contained in a given unit volume. Based on the data for the four samples, determine which of the following substances has the lowest density.

• Sample 1: volume = 13 cm2 , mass = 30 g

• Sample 2: volume = 20 cm2, mass = 72 g

• Sample 3: volume = 2 cm2, mass = 22 g

• Sample 4: volume = 41 cm2, mass = 103 g

An image is provided.

A rock with a mass of 70 grams is dropped into a graduated cylinder with 30 mL of water in it. What is the density of the rock?

• 0.5 g/mL

• 2 g/mL

• 14 g/mL

• 35 g/mL

Andrea and her father are building a treehouse and have bought wood for its construction. Andrea picked up a scrap of the wood they are using to build the treehouse. She wants to calculate the volume of the wood, so she has made some measurements. Which of the following is the correct calculation of volume in this piece of wood?

• 2,400 cm3

• 1,200 cm3

• 600 cm3

• 120 cm3

An image is provided of a cube on a scale. What is the density of the cube on the scale above?

• 2.5 g/cm3

• 25 g/cm3

• 250 g/cm3

• 2,500 g/cm3

Jaden is using a triple beam balance to measure the mass of an unknown substance in chemistry class. An image of the triple beam balance and object is provided.

Which of the following is the correct measurement of Jaden's unknown substance's mass?

• 63.5 g

• 62.5 g

• 65.0 g

• 65.8 g

Based on the data for the four samples, determine which of the following substance has the greatest density.

• Sample 1: volume = 15 cm3, mass = 30 g

• Sample 2: volume = 20 cm3, mass = 66 g

• Sample 3: volume = 3 cm3, mass = 12 g

• Sample 4: volume = 48 cm3, mass = 100 g

Rebecca wants to know the density of a penny. She knows that the mass of a penny is 3 grams. Next, she needs to measure the volume. To do that, she uses a graduated cylinder to find the displacement of water after the penny is dropped into the cylinder. Her results are provided.

Based on the provided data, Rebecca can conclude that the density of the penny is which of the following?

• 1.5 g/mL

• 2.0 g/mL

• 1.4 g/mL

• 1 g/mL

Tags

NGSS.MS-PS1-2