Straight line distance/time graphs
these tell us that the object is either at rest (the graph is horizontal) or moving at a steady speed either away from its starting point (+ or SW to NE slope) or returning to it (- or NW to SE slope)
Straight line velocity/time graphs
Remember, velocity – a VECTOR quantity since it has both size and direction – just means ‘speed in a particular direction’
these tell us that the object is either moving at a steady speed (the graph is horizontal) or accelerating from low to higher speed (+ or SW to NE slope) or decelerating (more properly negative acceleration) from a higher to a lower speed over time (- or NW to SE slope)
What about curved graphs?
A distance/time graph curving upwards means that the object’s speed is increasing with time, and vice-versa.
For IG: recognise the shape of the graph only. For AS, you should be able to solve the problem