Question pattern · Knowledge card
Uniform acceleration basics
Choose one interval where acceleration is constant, define a positive direction and connect the known motion quantities with the shortest valid equation chain.
- Primary skill
- Calculate & apply
- Original practice questions
- 1
Connect the ideas
Key relationships and graph reading
- a = (v − u) / t
- v = u + at
- s = (u + v)t / 2
- v² = u² + 2as
Check your method
Three common mistakes
- Mixing signs from different positive directions.
- Using constant-acceleration equations when acceleration changes.
- Using final speed as the average speed without checking the conditions.
Original micro-example
Try the idea in miniature
A cart speeds up uniformly from 3.0 m s⁻¹ to 7.0 m s⁻¹ in 2.0 s. Find its acceleration and displacement.
Show the short answer
a = (7.0 − 3.0) / 2.0 = 2.0 m s⁻². The average velocity is 5.0 m s⁻¹, so s = 5.0 × 2.0 = 10 m.
Original practice questions
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The pattern describes the reasoning structure. Each link below opens a distinct original practice question.
Easy2 marks
Uniform acceleration basics
Calculate & apply
Start original question