Density

Question 1

Density equation

Answer 1

Density (kg/m^3) = mass (kg) / volume (m^3)

Question 2

How can we investigate the density of irregular objects?

Answer 2

1) weigh the object on a balance
2) displacement method (the amount by which water level rise = volume of the irregular object)
3) use the equation density = mass/ volume

Question 3

How can we investigate the density of regular objects?

Answer 3

1) weigh the object on a balance
2) calculate the volume of the shape (eg. lxwxh for a cuboid)
3) use the equation density = mass/ volume

Question 4

How can we investigate the density of liquids?

Answer 4

1) pour the liquid into a measuring cylinder to a particular volume on a balance
2) weigh the liquid on a balance
3) use the equation density = mass/ volume