G9 IGCSE Density Quiz

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 the student 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

• 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.

The mass of one of the spheres is 10g.

What is the density of the glass from which the spheres are made?

• 0.25 g/cm³

• 0.40 g/cm³

• 2.5 g/cm³

• 4.0 g/cm³

Tags

NGSS.MS-PS1-2

The diagram shows a cuboid block made from a metal of density 2.5g/cm³.

What is the mass of the block?

• 8.0 g

• 16 g

• 50 g

• 100 g

What is the density of the liquid?

• 0.5 g/cm³

• 2.0 g/cm³

• 8.0 g/cm³

• 10.0 g/cm³

Diagram 1 shows a piece of foam rubber that contains many pockets of air. Diagram 2 shows the same piece of

foam rubber after it has been compressed so that its volume decreases.

What happens to the mass and to the weight of the foam rubber when it is compressed?

• mass increases; weight increases

• mass increases; weight has no change

• mass has no change; weight increases

• mass has no change; weight has no change

Tags

NGSS.MS-PS1-2

A metal block has the dimensions shown. Its mass is 1000g.

What is the correct calculation of the density of the block?

• 
• 
• 
• 

A student wishes to determine the density of the solid block shown.

Which quantities must be known?

• 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

Two cylinders are made of the same metal. Both cylinders have the same cross-sectional area but one is longer than the other.

Which quantity is the same for both cylinders?

• 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