Introduction to Matter

Density is the ratio of mass to volume. Troy listed the density of four metals at 20 °C. If Troy has a 4-cm3 cube of each of these metals, which cube has the least amount of mass?

• brass
• gold
• iron
• lead

Tags

NGSS.MS-PS1-2

The illustration below shows a rectangular solid. What is the volume of this solid?

• 70 cm3
• 15 cm2
• 37 cm2
• 68 cm3

Imagine that the block is made of pure gold. If Ana cuts this block into two equal pieces, which of these statements best describes the pieces?

• The mass of each piece is the same as that of the original block.
• The weight of each piece is the same as that of the original block.
• The density of each piece is the same as that of the original block.
• The volume of each piece is the same as that of the original block.

In a science lab, Paula used a ruler to measure the block of material shown below.  She also measured the mass of the block as 400 grams.  What is the density of this block?

• 0.75g/cm3
• 1.25g/cm3
• 1.33g/cm3
• 300g/cm3

Uma had a piece of titanium with a mass of 18 grams. Using a graduated cylinder partly filled with water, she determined that the titanium displaced 4 milliliters of water. What is the density of titanium?

• 0.22 g/cm3
• 4.5 g/cm3
• 18 g/cm3
• 324 g/cm3

Josie partially filled a graduated cylinder with water. She then dropped a rock into the water. The illustration below shows what happened to the level of the water inside the graduated cylinder. What is the volume of the rock?

• 5 mL
• 10 mL
• 35 mL
• 40 mL

Tags

NGSS.MS-PS1-2

The density of aluminum is 2.7 g/cm3.  What is the volume of a piece of aluminum if its mass is 8.1 grams?

• 0.33 cm3
• 2.7 cm3
• 3 cm3
• 21.9 cm3