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Learning objective

Identify from the shape of a speed-time graph when an object is stationary, moving at a constant speed, accelerating, or decelerating.

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Cambridge IGCSE Combined ScienceMotion, forces and energyCore content

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Quick explanation

Identify from the shape of a speed-time graph when an object is stationary, moving at a constant speed, accelerating, or decelerating

  • This point belongs to Motion, especially Motion outcomes.
  • You need to be able to identify from the shape of a speed-time graph when an object is stationary, moving at a constant speed, accelerating, or decelerating.
  • The key ideas to know are Determine and Identify.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DetermineIdentify

Why it matters

This objective helps connect Motion outcomes to exam-style questions, flashcards, and revision notes for Motion.

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Paper 3 structured question: Motion

Paper 3Theory (Core)1 marks

Diagram Description

Speed-Time Graph of a Car

The graph shows a flat line at zero for 5 seconds, a straight line at 20 m/s for 10 seconds, and a line with a negative slope for 5 seconds.

  1. a

    Analyse Describe the motion of the car during the first 5 seconds.

    Aim for approximately 1 distinct marking point.

    [1]
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