Everything CCEA students need to know about speed-time graphs for GCSE Physics. ... A horizontal line means the object is moving at a constant speed.

In the realm of physics, the speed of light is considered one of the most fundamental constants in the universe, dictating ...

If you look back at our model, you can see that we are plotting distance (x) versus time squared (t 2) and these two should be proportional with the constant of (1/2)a. So, the slope of our ...

Here the pod accelerates at 9.8 m/s 2 for 2.6 minutes and then travels at a constant speed. ... be the slope of the velocity-time graph and the velocity will be the slope of the position-time graph.

The speed of light is constant, or so textbooks say. But some scientists are exploring the possibility that this cosmic speed limit changes, a consequence of the nature of the vacuum of space.