Density and Sig Figs

Jack has a rock. The rock has a mass of 14.2 g and a volume of 2 cm³. What is the density of the rock? Answer using the appropriate significant figures.

• 7 mL

• 7 g/cm³

• 28 g/cm³

• 0.1 g/cm³

The tool used to measure the mass of a substance or object is a ______________.

• balance
• graduated cylinder
• ruler
• thermometer

Which lab tool might you use to measure the volume of a liquid?

• electric scale
• bunsen burner
• test tube
• graduated cylinder

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Frank has an eraser. It has a mass of 4.3 g, and a volume of 2.6 cm³. What is its density? Answer using the appropriate significant figures.

• 8 g/cm³

• 1.7 g/cm³

• 0.60 g/cm³

• 11 g/cm³

An empty beaker has a mass of 60.0 grams. When mercury is added to the beaker, it has a mass of 201 grams. What is the mass of the mercury? Answer using the appropriate significant figures.

• 141 grams

• 200 grams

• 140 mL

• 260 g

Objects that are _______ dense than water will float.

• less
• more

A CD has a mass of 20g and a volume of 5 mL. What is it's density?

• 4 g/mL
• 25 g/mL
• 15 g/mL
• 100 g/mL

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

Tags

CCSS.HSG.MG.A.2

A bar of copper has a mass of 216.3g and a volume of 24.2cm³. What is the density of copper? Answer using the appropriate significant figures.

• 8.94g/cm3

• 8.9g/cm3

• .112g/cm3

• 5234mL