Physics · KS3 Y7 · Forces & Motion
Speed = distance ÷ time
p2Free4:00Heddy Score 2 of 7, below the standardPlays from youtube-nocookie.com. No YouTube cookies until you press play.
What you need to know
- On a distance–time graph the gradient of the line gives the speed.
- A flat line means the object is stationary; a steeper line means faster movement.
- A curved line shows changing speed, found at a point by drawing a tangent.
In this clip
0:00–4:00Distance–time graphsgcse-phys-6-5-4-1-4Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.2/7, Below the standard
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · not judged yet. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
How the Heddy Score worksNot enough students yet
Our own students' answers. These are what move ★7 Proven.Why we picked it
Cognito lesson on reading distance–time graphs and finding speed from the gradient, including tangents; GCSE, also useful for Year 7 speed work.
Cognito on YouTubechecked 2026-10-16