Interpreting distance-time graphs
I can describe the movement of objects represented by a distance-time graph.
Interpreting distance-time graphs
I can describe the movement of objects represented by a distance-time graph.
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Lesson details
Key learning points
- A level line on a distance-time graph shows a stationary object (no movement).
- The greater the gradient (steeper the line) on a distance-time graph, the faster the movement.
- Upward and downward sloping lines on a distance-time graph show movement in opposite directions.
- The average speed between two points is calculated using speed = change in distance ÷ time taken.
Keywords
Distance-time graph - A distance-time graph is used to show how far an object has travelled over a period of time.
Average speed - The overall distance travelled divided by overall time for a journey.
Gradient - The gradient (steepness) of a line on a distance-time graph shows its speed. Higher gradients (steeper lines) show faster objects.
Stationary - A stationary object is not moving. It has a speed of 0 m/s.
Common misconception
Pupils can think that a distance or time value read from a distance-time graph is the speed.
Remind pupils of the definition of speed, pointing out that it requires two pieces of information to find - both the distance and time.
To help you plan your year 8 science lesson on: Interpreting distance-time graphs, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 8 science lesson on: Interpreting distance-time graphs, download all teaching resources for free and adapt to suit your pupils' needs.
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Explore more key stage 3 science lessons from the Moving by force unit, dive into the full secondary science curriculum, or learn more about lesson planning.
Equipment
Licence
Lesson video
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Starter quiz
6 Questions
shows the time
shows the distance
shows the maximum and minimum values
shows the speed of an object
numbers on the axis so that values can be read
lines from the axes that allow readings to be read easily
Exit quiz
6 Questions
The total distance travelled divided by the total time.
The steepness of a line on a graph.
Shows the distance something has moved at each moment.
Another name for the gradient of a graph.
Not moving.
