Just how fast am I going? Seems an easy question, but appearances are very definitely deceptive.

Physics Narrative 14-16

It's time to leave. You've found a window seat, farthest from the platform, and are settling in for the long train journey...

Physics Narrative 14-16

Alice, Bob and Charlie are once again at the railway station (no rest for good behaviour). Charlie is on the platform and...

Physics Narrative 14-16

Physics is all about noticing, and then reusing, common patterns. You got a handle on velocity–time graphs by thinking about...

Physics Narrative 14-16

Some physical quantities are essentially directional. Force is one such. As soon as you describe a force, it's possible to ask...

Physics Narrative 14-16