S1U - Will it float or sink?

Which of the following correctly describe density?

• Density is the mass per unit area.

• Density is independent of the material.

• Density is the mass per unit volume.

• Density is the weight per unit volume.

A box has a mass of 600 g and dimensions of 4 cm by 3 cm by 5 cm.

What is the density of 10 such boxes?

• 10 g/cm³

• 40 g/cm³

• 100 g/cm³

• not enough information to determine

The table shows the density of Objects A to D, water and oil. Which of the following objects will float in water but sink in oil?

• object A

• object B

• object C

• object D

In order to measure the volume of a potato chip, Bob ties a small cube of length 1 cm to a potato chip and places it in a beaker of water. A volume change of 3 cm³ is being observed.

What is the volume of the potato chip?

• 1 cm³

• 2 cm³

• 3 cm³

• 4 cm³

Tom places a 50 g ice cube into a glass containing 500 cm³ of water. The ice cube floats in the glass of water while Tom measures the volume change. The volume change is measured at 40 cm³.

What is the volume of the ice cube?

• 40 cm³

• 460 cm³

• 540 cm³

• not enough information to determine