Density
2 marks · NormalA metal cube has a mass of 540 g and a volume of 200 cm³.
Calculate the density of the metal, giving your answer in kg/m³.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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2700 kg/m³ (±10)
Common mistakes: not converting grams to kilograms; not converting cm³ to m³
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Marking points
M1 · 1 mark · Correct substitution into the density formula with both mass and volume converted to SI units.
A1 · 1 mark · Correct final answer given to 2 or 3 significant figures with correct unit.
Worked solution
Density is given by .
Convert mass: 540 g = 0.54 kg.
Convert volume: 200 cm³ = 200 × 10⁻⁶ m³ = 0.0002 m³.
Final answer: 2700 kg/m³.