Calculating Density: Mass and Volume Relationships

The video tutorial explains density as a physical property of matter, detailing how it can be calculated using a simple triangle method involving three variables: density, mass, and volume. The tutorial provides examples of calculating density and mass using this method, emphasizing the importance of understanding units and mathematical operations. It encourages students to practice these calculations and seek help if needed.

What is density a combination of?

• Centimeters cubed and liters

• Liters and milliliters

• Grams and milliliters or grams and centimeters cubed

• Grams and liters

What does the denominator in the density unit indicate?

• The temperature of the substance

• The volume of the substance

• The type of substance (liquid or solid)

• The mass of the substance

How do you solve for density using the density triangle?

• Subtract volume from mass

• Multiply mass and volume

• Divide mass by volume

• Add mass and volume

If you need to solve for mass using the density triangle, what operation do you perform?

• Divide density by volume

• Multiply density by volume

• Add density and volume

• Subtract volume from density

In the first practice problem, what is the mass of the rock?

• 3.5 milliliters

• 7.7 grams

• 27 grams

• 3.5 grams

What is the density of the rock in the first practice problem?

• 3.5 grams per milliliter

• 7.7 grams per centimeter cubed

• 7.7 grams per milliliter

• 27 grams per milliliter

In the second practice problem, what is the volume of the block of wood?

• 164 centimeters cubed

• 172 centimeters cubed

• 164 grams

• 172 grams

What is the density of the block of wood in the second practice problem?

• 2.7 grams per milliliter

• 8 grams per centimeter cubed

• 2.7 grams per centimeter cubed

• 11.4 grams per centimeter cubed

In the third practice problem, what is the given density of the block?

• 8 grams per centimeter cubed

• 2.7 grams per centimeter cubed

• 11.4 grams per centimeter cubed

• 91.2 grams per centimeter cubed

What is the mass of the block in the third practice problem?

• 2.7 grams

• 91.2 grams

• 11.4 grams

• 8 grams

Tags

NGSS.MS-PS3-1