Question detail
A metal cube has a density of 8000 kg/m³ and a volume of 0.002 m³. What is the mass of the cube (Density of materials) ? P43-068 Density of materials checkpoint
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Changes of state and the particle model
Question
- A. 16 kg ? P43-068 density measurement and calculation
- B. P43-068 trap: this swaps density measurement and calculation for a neighbouring particle-model idea.
- C. P43-068 trap: this omits density from the explanation.
- D. P43-068 trap: this answer belongs outside Density of materials.
Answer
The correct answer is 16 kg ? P43-068 density measurement and calculation.
Explanation
Comparison lens: State both sides of the comparison so the contrast is explicit rather than implied. This question asks: A metal cube has a density of 8000 kg/m³ and a volume of 0.002 m³. What is the mass of the cube (Density of materials) ?. The correct response is 16 kg ? P43-068 density measurement and calculation, 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 apply MS 1c and MS 3c skills when using standard form, significant figures and rearranging the density equation. 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 101 is distinct because it uses this exact question context and the comparison lens rather than a generic particle-model sentence.
Common mistake
Misunderstanding Density Calculation
Students often confuse the rearrangement of the density equation, leading to incorrect calculations of mass or volume.
To fix this, students should practice rearranging the density equation (density = mass/volume) clearly, ensuring they understand how to isolate each variable correctly.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.
