Speed-time graphs are very useful when describing the movement of an object. This is a velocity time graph of an object moving in a straight line due North. The displacement of this object is the ...

Key fact The gradient of speed-time and velocity-time graphs represent acceleration. The area under a speed-time graph represents the distance travelled.

But ignoring that special lab, the best way to build or verify a model is with a graph. Let’s look at the constant velocity cart again. Say that the cart starts at time t = t 0 and position x = x 0.

At the Porsche test track, we learn the difference between speed and velocity.

Why do you always make a graph in physics lab? It's not just for fun, there is a reason. Here is an example.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...