Reading Distance-Time Graphs
Read and plot distance-time graphs for moving objects; interpret the gradient (steepness) of a line as speed; identify stationary periods (horizontal sections), constant speed (straight diagonal lines), and relative speeds by comparing gradients; calculate average speed from the gradient of a straight-line segment using speed = distance ÷ time
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1858 concepts · 9 subjects
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A distance-from-start-time graph shows how far a traveler is from a fixed starting point as time passes. Slope magnitude represents speed; a horizontal segment means the position is unchanged.
Read and annotate a short journey graph, then sketch a graph from a written journey story.
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PhET Interactive Simulations · Practice link — not the full lesson
Forces and Motion: Basics
Before you open · source notes
Forces and Motion: Basics supports hands-on exploration for Reading Distance-Time Graphs. Not every lab worksheet.
Free interactive page, no sign-in required for the tested path.
Before you openAsk the learner what they changed in the sim or page and what they observed.
Opening this link does not save learning or assess mastery.
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Public PhET Interactive Simulations page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
PhET Interactive Simulations. “Forces and Motion: Basics.” External page; Gakuva does not copy, host, embed, or redistribute materials.
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Check understanding
- Read a distance-time graph and describe what is happening at each stage — moving, stopped, returning
- Calculate speed from the gradient of a straight section of a distance-time graph
- Sketch a distance-time graph from a written description of a journey with stops and speed changes
“If your child sees a distance-time graph of a journey with a flat section in the middle, can they explain what was happening then — and point to which part of the graph shows the fastest speed?”
Curriculum record
- Type
- Representational
- Subject
- Science
- Domain
- Forces & Motion
- Age range
- Ages 10–13