Physics A-Level
Density
What Density means in Physics A-Level, as defined for AQA, OCR.
Definitions of Density
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Density in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Measures how much mass is packed into each unit of volume, given by ρ = m/V, where ρ is in kg m⁻³, m in kg and V in m³.
Mass per unit volume, calculated using ρ = m/V, with consistent units such as kg m⁻³.
Topics that use Density
- Bulk properties of solids (AQA A-Level)
- Density and pressure (OCR A-Level)
Related terms
- Pascal
- Breaking stress
- Brittle versus ductile force–extension graphs
- Conservation of energy
- Conservation of energy in mechanical systems
- Density as a material property
- Dissipation of energy during plastic deformation
- Elastic limit
Using Density in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge