Direct and inverse proportionality
What Direct and inverse proportionality means in Combined Science GCSE, as defined for AQA.
Definition of Direct and inverse proportionality
Check what you remember
Read the wording for your board, then hide it and explain Direct and inverse proportionality in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Acceleration is directly proportional to the resultant force when mass is constant, and inversely proportional to mass when force is constant.
Topics that use Direct and inverse proportionality
- Newton's Second Law (AQA GCSE)
Related terms
- a = F ÷ m
- Acceleration
- Acceleration and deceleration
- Approximation
- Direct proportionality at constant mass
- Equals sign
- Force
- Inverse proportionality at constant resultant force
Using Direct and inverse proportionality 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 Combined Science questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge