Density Review Lesson for Task Assessment 25/26

What does density measure?

• The amount of space an object occupies.

• How much mass is packed into a given volume.

• The weight of an object.

• The surface area of an object.

Which of the following is the correct formula for calculating density?

• Density = Volume / Mass

• Density = Mass + Volume

• Density = Mass / Volume

• Density = Mass * Volume

A sample has a mass of 64.4 grams and a volume of 23.9 cm³. What is its density?

• 2.70 g/cm³

• 7.14 g/cm³

• 7.86 g/cm³

• 8.92 g/cm³

How can the volume of an irregularly shaped object, like a key, be determined?

• By measuring its length, width, and height.

• By weighing it on a digital scale.

• By using the water displacement method.

• By comparing its color to known materials.

What unit is used for mass?

• pound
• liter
• gram

• meter

What unit is used for the volume of a regular object?

• Liters (L)
• cm²

• cm³

• Grams (g)

What unit is used for the volume of an irregular object?

• liters (L)
• milliliters (mL)

• grams (g)
• cm²

When using water displacement to find the volume of an irregular object, which mathematical method do you use?

• addition

• subtraction

• multiplication

• division

When finding the volume of a regular object, which mathematical method do you use?

• addition

• subtraction

• multiplication

• division