The slope of a distance versus time graph is speed.
Distance time graph
A distance-time graph shows how far an object has travelled in a given time. Distance is plotted on the Y-axis (left) and Time is plotted on the X-axis (bottom). On a distance-time graph, there is no line sloping downwards. A moving object is always ‘increasing’ its total length moved with time.
- Curved lines on a distance-time graph indicate that the speed is changing
- Straight lines on a distance-time graph tell us that the object is travelling at a constant speed.
- The slope of a distance time-graph gives the speed
- Speed = Change in distance/change in time
