Velocity-Time Graph
Maths: Edexcel A Level Pure Maths, topic 3.1.4
Velocity-Time Graphs
Velocity-time graphs plot the velocity against the time.

Velocity
- Velocity is speed measured in a particular direction.
- Two objects travelling in opposite directions at a speed of 10km/h would have velocities of 10km/h and -10km/h.

Velocity-time graph

Gradient and area
- The gradient in a velocity-time graph represents acceleration.
- The area under the graph is the total distance travelled.
- When the graph is flat the velocity is constant.
- Steeper gradients mean stronger acceleration and negative slopes mean deceleration.
Test yourself on Velocity-Time Graph
What does the area under a velocity-time graph represent?
What do we call speed measured in a particular direction?
Which of the following represents deceleration in a velocity-time graph?
What does the flat part of a velocity time graph represent?
What does the gradient of a velocity time graph represent?