Velocity-time graphs show how the velocity (or speed) of a moving object changes with time. These graphs also show if the object is moving at a constant speed or accelerating, decelerating, or still.

Brush up on your velocity-time graph knowledge and understanding with our National 5 Physics revision article.

So, the area under the velocity line is 50 meters—the same as the displacement above. That's cool, right? OK, how about another example?