A horizontal line means the object is moving at a constant speed. The gradient of the line = the rate of change of speed. The steeper the line, the greater the increase in speed. The area under the ...

This video explains how a distance-time graph represents how the distance of an object changes over time. The y-axis represents distance travelled, against time on the x-axis. A horizontal line ...

One of the most basic things students do in a physics lab is to collect data and use that to build a model. Most of these models come in the form of a mathematical function. But here is the problem.