IGCSE | Density and Pressure |

What is the correct equation linking density mass and volume

• d = m / v

• d = m x v

• d = v / m

___________is the result of the weight of a column of air pushing on an area.

• air pressure
• density
• volume
• none of the above

In what direction(s) does air exert pressure?

• everywhere
• no where
• there is no pressure
• downward

A _____________ is the scientific  instrument used to measure air pressure.

• barometer
• thermometer
• mercury
• watch

As you climb up a mountain what happens to the air pressure?

• decreases
• increases
• stays the same

A block of steel has a volume of 50 cm³, a length of 4 cm and a width of 5 cm. The height of the block is

• 2 cm

• 2.5 cm

• 5 cm

• 10 cm

A block of wood has a mass of 20 g and a volume of 25 cm³. What is the density of wood?

• 500 g/cm³

• 50 g/cm³

• 0.8 g/cm³

• 1.25 g/cm³

A copper wire has a density of 9 g/cm³ and a volume of 36 cm³. What is the mass of the copper wire?

• 324 g

• 4 g

• 0.25 g

• 25 g

A block of mass 3000 g rests on a desk as shown.

What is the weight of the block?

• 0.3 kg

• 3 kg

• 3 N

• 30 N

Which lab tool might you use to measure the volume of a liquid?

• electric scale
• bunsen burner
• test tube
• graduated cylinder