Rate of change

Definition

Change in a quantity divided by the time taken for that change.

Used by Edexcel

Specification 2.26 · Paper 1

Newton's second law states that the resultant force equals the rate of change of momentum.
Revise: Force and Change in Momentum

1
In explanations about reducing impact force, link the steps explicitly: increasing the stopping time reduces the rate of change of momentum, so the force is smaller.

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GCSE Physics · key term

Change in a quantity divided by the time taken for that change.

Used by Edexcel

Specification 2.26 · Paper 1

Newton's second law states that the resultant force equals the rate of change of momentum.
Revise: Force and Change in Momentum

1
In explanations about reducing impact force, link the steps explicitly: increasing the stopping time reduces the rate of change of momentum, so the force is smaller.

Create a free account to read GCSE Physics revision notes for your exam board and track your progress.