Velocity-time graphs show velocity on the vertical axis. Acceleration is still represented by the gradient. Key fact The gradient of speed-time and velocity-time graphs represent acceleration.

The steeper the line, the greater the increase in speed. The area under the graph = the distance travelled. This is a speed-time graph for a car moving between two sets of traffic lights.

Navionics, a manufacturer of marine electronic charts, announced the relesase of an entirely new productline, called the XL charts, which consists of larger charts at reduced prices. The new XL ...