Which of the following items would have the highest density?

A.

A 2 cm3 block of lead with a mass of 11 grams

B.

A 12 cm3 block of wood with a mass of 3 grams

C.

A 12 cm3 block of aluminum with a mass of 2 grams

The block of lead is the most dense object among these three.

Option A.

Explanation:

Density of an object is defined as the mass of an object per unit volume. Its equal to a mass of an object whose shape is a cube with sides equal to unit lengths.

In case of block of lead, the mass is 11 gram and volume is 2cc. So the density = 11/2 gm/cc = 5.5 g/cc.

In case of block of wood, the mass is 3gm and volume is 12cc. So the density of wood = 3/12 g/cc = 0.25g/cc.

In case of block of Aluminum, weight of the block is 2gm and volume is 12cc. So the density of aluminum = 2/12 g/cc = 0.17g/cc.

So the heaviest among them is lead.