Distanc time graphs

• What type of graphs are used to show journeys?

  Distance-time graphs
• What can be plotted on a distance-time graph?

  The distance travelled by an object
• What does the gradient of a distance-time graph represent?

  Speed of the object
• How does the steepness of the graph relate to the object's speed?

  Steeper graphs indicate faster speeds
• What is the formula for speed in relation to distance and time?

  Speed = distance ÷ time
• What do flat sections on a distance-time graph indicate?

  The object is stationary
• What do straight uphill sections on a distance-time graph represent?

  The object is travelling at a steady speed
• What do curves on a distance-time graph indicate?

  Acceleration or deceleration
• What does a steepening curve on a distance-time graph signify?

  The object is speeding up
• What does a levelling off curve on a distance-time graph indicate?

  The object is slowing down
• How can you find the speed of an object at a particular point on a curve?

  Find the gradient of the tangent
• Why is it important to read the axes of a graph carefully?

  To avoid confusion between graph types
• What is a common mistake when interpreting graphs?

  Confusing distance-time and velocity-time graphs