A block of metal has a mass of 300 grams and occupies a volume of 100 cm³. Calculate the density of the metal (Density of materials)

3 g/cm³

Exam lens: Write the relationship, substitute values only when needed, and finish by interpreting the result. This question asks: A block of metal has a mass of 300 grams and occupies a volume of 100 cm³. Calculate the density of the metal (Density of materials). The correct response is 3 g/cm³, because density links mass and volume, so the answer must preserve which quantity is being calculated. In Density of materials, the marking point should connect directly to rearrange the density equation to solve for mass, volume or density. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 47 is distinct because it uses this exact question context and the exam lens rather than a generic particle-model sentence.