Density IG

A student wishes to determine the density of an irregularly-shaped stone.

First he finds the mass of the stone. Next he lowers the stone into a measuring cylinder

containing water.

The diagrams show the measuring cylinder before and after the stone is lowered into it.

How should he calculate the density of the stone?

• mass of stone - reading 2

• mass of stone *(reading 2 – reading 1)

• mass of stone / reading 2

• mass of stone / (reading 2 – reading 1)

The diagrams show the dimensions and masses of four regular solid objects. The objects are

made from different metals.

Which metal has the greatest density?

• A

• B

• C

• D

Diagram 1 shows a measuring cylinder containing water.

Diagram 2 shows the same measuring cylinder and water after 10 identical solid glass spheres

have been added.

• 0.25 g / cm3

• 0.40 g / cm3

• 2.5 g / cm3

• 4.0 g / cm3

• 8.0 g

• 16 g

• 50 g

• 100 g

• 0.5 g / cm3

• 2.0 g / cm3

• 8.0 g / cm3

• 10.0 g / cm3

• A

• B

• C

• D

• the area of the shaded face and the volume of the block

• the area of the shaded face and the weight of the block

• the mass of the block and the height of the block

• the mass of the block and the volume of the block

• density

• mass

• resistance

• volume

The mass of a piece of metal is 1200 g.

A measuring cylinder contains 150 cm3 of water.

The piece of metal is put into the measuring cylinder. The water level rises to 250 cm3 and covers

the metal.

What is the density of the metal?

• 3.0 g / cm3

• 4.8 g / cm3

• 8.0 g / cm3

• 12.0 g / cm3

A person measures the length, width, height and mass of a metal block with rectangular sides.

Which of these measurements must be used in order to calculate the density of the metal?

• mass only

• height and mass only

• length, width and height only

• length, width, height and mass