Save guides, add subjects and pick up where you left off with your BBC account. A horizontal line means the object is moving at a constant speed. The gradient of the line = the rate of change of ...

Save guides, add subjects and pick up where you left off with your BBC account. A sloping line on a distance-time graph shows that the object is moving. See how much you know about distance-time ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The speed of light traveling through a vacuum is exactly 299,792,458 meters (983,571,056 ...