Density Review

What is the formula used to calculate density? (D = density, M = mass, V = volume)

• D = MV

• D = M / V

• D = M + V

What is the density of water?

• 10 g/mL

• .001 g/mL

• 1.0 g/mL

Which of the following densities would sink in water?

• 1.0 g/mL

• 4.02 g/mL

• .5 g/mL

If a piece of lead has a density of 11.35 g/mL, what would happen to its density if you cut the piece of lead in half?

• Its density would decrease.

• Its density would increase.

• Its density would stay the same.

Two cubes made of different materials are placed in a container of water. Cube X floats while Cube Y sinks. What can be inferred about the densities of Cube X and Cube Y?

• A. Cube X has a higher density than Cube Y

• B. Cube X has a lower density than Cube Y

• C. Cube X and Cube Y have the same density

Which list shows the objects in order from most dense to least dense?

• A. Sponge, bottle cap, grape, screw

• B. Screw, grape, bottle cap, sponge

• C. Grape, sponge, bottle cap, and screw

Tags

NGSS.MS-PS1-2

A student finds a rock on the way to school. In the lab he determines that the volume of the rock is 22.7 mL and the mass is 39.9g. What is the density of the rock?

• 22.7 g/mL

• 39.9 g/mL

• 1.76 g/mL

• 0.57 g/mL

The mass of a toy spoon is 7.5 grams and its volume is 3.2 mL. What is the density of the toy spoon?

• 2.34 g/mL

• 1.25 g/mL

• 3.75 g/mL

• 0.43 g/mL

Tags

NGSS.MS-PS1-2

Which liquid has the highest density?

• Corn syrup

• Molasses

• Oil

• Water

Tags

NGSS.MS-PS1-2

Which liquid will float on water?

• Corn syrup

• Molasses

• Oil

• None