Question

The mass of a piece of Iron is 400g and Its volume is 51cm³.

Q1: What is the density of the Iron piece?

Q2: State and explain what happened to the density of the iron object when it is heated.

Answer 1

Explanation:

1) Density of iron=mass/volume

=400/51

=7.84g/cm^3

2) The density of iron decreases when it is heated.because it's volume increases.