Combined Science GCSE
Average and instantaneous speed from graphs
What Average and instantaneous speed from graphs means in Combined Science GCSE, as defined for AQA.
Definition of Average and instantaneous speed from graphs
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Reference: AQA
For a curved line, find average speed using total distance and total time, or estimate instantaneous speed by drawing a tangent and finding its gradient.
Topics that use Average and instantaneous speed from graphs
- The distance–time relationship (AQA GCSE)
Related terms
- Accelerated motion and curved graphs
- Changing speed
- Constant speed
- distance–time graph
- Gradient
- Instantaneous speed as a tangent gradient
- Practical graph-reading skills
- Calculating change in distance and time
Using Average and instantaneous speed from graphs in the exam
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