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

  • 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

Velocity-time graph

Gradient and area

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?

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