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Ratio & ProportionKey Facts

Key Facts

Part of Density — GCSE Mathematics

This key facts covers Key Facts within Density for GCSE Mathematics. Revise Density in Ratio & Proportion for GCSE Mathematics with 14 exam-style questions and 3 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 5 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 2 of 5

Practice

14 questions

Recall

3 flashcards

Key Facts

FormulaDensity = Mass ÷ Volume
TriangleD = M/V, M = D×V, V = M/D
Unitsg/cm³ or kg/m³
Water1 g/cm³ (objects less dense than this float)
Conversion1 g/cm³ = 1000 kg/m³

Keep building this topic

Read this section alongside the surrounding pages in Density. That gives you the full topic sequence instead of a single isolated revision point.

What Is Density?Method: DMV TriangleWorked Example 1: Finding DensityWorked Example 2: Finding Mass

Practice Questions for Density

Which formula correctly shows how density (D), mass (M) and volume (V) are related?

  • A. D = M + V
  • B. D = M × V
  • C. D = M ÷ V
  • D. D = V ÷ M
1 markfoundation

Explain what is meant by a density of 5 g/cm³.

2 marksstandard

Quick Recall Flashcards

Density Formula
Density = Mass ÷ Volume. Units: g/cm³ or kg/m³. Cover what you need in the triangle!
Floating Rule
Objects float if their density is LESS than the liquid. Water = 1 g/cm³, so anything under 1 g/cm³ floats.

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What Is Density?

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Method: DMV Triangle