Velocity time graphs

• What do velocity-time graphs show?

  They show how the velocity of an object changes over time.
• What is plotted on the y-axis of a velocity-time graph?


  Velocity is plotted on the y-axis.
• What is plotted on the x-axis of a velocity-time graph?


  Time is plotted on the x-axis.
• What does a horizontal line on a velocity-time graph indicate?

  It indicates that the object is moving at a constant velocity.
• What does a sloping line upwards on a velocity-time graph represent?

  It represents that the object is accelerating.
• What does a sloping line downwards on a velocity-time graph indicate?

  It indicates that the object is decelerating.
• How does the steepness of a line on a velocity-time graph relate to acceleration or deceleration?

  The steeper the line, the faster the acceleration or deceleration.
• What does the area under a velocity-time graph represent?

  The area under the graph gives the distance travelled.
• How can you calculate the distance travelled if the graph forms a triangle or rectangle?

  You can calculate the area of the triangle or rectangle to find the distance.