Question

a copper piece whose mass is 88gm and its volume is 10cm³. find its density in kg/m³.​

Answer 1

ANSWER:

Density = 8800 kg/m³

GIVEN:

Mass = 88 g

Volume = 10 cm³

TO FIND:

Density in kg/m³

CONVERSIONS:

1 g = 0.001 kg => 88 g = 0.088 kg

1 cm³ = $10^{-6}$m³ => 10 cm³ = $10^{-5}$ m³

FORMULA:

DENSITY = MASS / VOLUME

EXPLANATION:

Density = 0.088/ ${10}^{-5}$

Density = 0.088 × ${10}^{5}$

Density = 8800 kg/m³

EXTRA POINTS:

• Density can also be expressed in g/cm³.

• g/cm³ is the CGS unit.

• Expressing density in g/m³ and kg/cm³ is often rare. As they are not standard form of expressing density.