Density Problems

Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.

• 6 cm³

• 12 g/cm³

• 128 g/cm³

• 8  g/cm³

What is density?

• The amount of space an object takes up

• The amount of matter in a given space

• The amount of matter in an object

What is the unit for Density?

• Grams (g)

• Milliliters (mL)

• Grams/Milliliter (g/mL)

If a 35 g rock has a volume of 2.8, what is the density of the rock?

• 52 g/ml

• 17 g/ml

• 12.5 g/ml

• 134 g/ml

A basketball that has a density of 0.86 g/ml has a volume of 50 ml. What is the mass of the object?

• 43 g

• 0.0172 g

• 58.14 g

• 5 g

What is the volume of a cube that has a mass of 160 g and a density of 1.2 g/ml?

• 364 ml

• 0.23 ml

• 17 ml

• 133.33 ml

What is the volume of an object that has a density of 6.6 g/cm3 and a mass of 84 g?

• 12.72 ml

• 12. 72 cm3

• 0.0034 ml

• 575.3 g

If an object has a density of 1.03 g/ml, will it float or sink in water?

• True

• False

• Float

• Sink

A student measures the mass and volume of a small cube made of an unknown metal. The mass of the cube is 25.0 g, and the volume of the cube is 3.19 cm³. The student is told that the cube is a sample of one of the four metals listed in the table. Based on the data given, the unknown metal is most likely —

• gold

• iron

• silver

• tin

Tags

NGSS.MS-PS1-2

The mass of an unidentified rock is 15.5 grams. Students determine the volume of the rock by placing the rock in a cylinder with water. The students calculate the density of the rock. They determine the identity of the rock based on the density ranges in the table. The students most likely have which type of rock?

• Coal

• Dolomite

• Peridotite

• Sandstone