A horizontal line means the object is moving at a constant speed. The gradient of the line = the rate of change of speed. The steeper the line, the greater the increase in speed. The area under the ...

Help pupils calculate speed accurately from distance–time graphs and understand why a whole-journey average must include stops. This editable Year 9 maths PowerPoint develops outward and return speeds ...

A distance-time graph shows how the distance travelled by an object changes over time and can be used to calculate the speed of the object. A sloping line on a distance-time graph shows that the ...

Turn speed and time information into accurate distance–time graphs with this editable 108-slide Year 9 maths PowerPoint. Pupils progress from simple outward journeys to stops, changing speeds and ...