Question

Density of an object is 1.8 gram / centimetre cube Express it in kg/metre cube

Answer 1

1 kg = 1000 g ==> 1 = 10^-3 kg/g

1 m = 100 cm

1 m³ = 10⁶ cm³ ==> 1 = 10^6 cm³/m³

Use above relations and solve. You’ll get 1.8 g/cm³ = 1800 kg/m³

Refer to image attached for solution.