Distance & Displacement – The Physics Hypertextbookdefinitions. I've got to assume that everybody reading this has an idea of what distance is. It's one of those innate concepts that doesn't seem to require explanation. Nevertheless I've come up with a preliminary definition that I think is rather good. ![]() Engine displacement is determined from the bore and stroke of an engine's cylinders. The bore is the diameter of the circular chambers cut into the cylinder block. The displacement or displacement tonnage of a ship is the ship's weight. The name reflects the fact that it is measured indirectly, by first calculating the volume of. Distance is a measure of the interval between two locations. The odd thing is that sometimes we state distances as times. They're all ninety minutes, but nobody would say they were they were all the same distance. What's being described in these examples is not distance, but time. In casual conversation, it's often all right to state distances this way, but in most of physics this is unacceptable. That being said, let me deconstruct the definition of distance I just gave you. Every year in class, I do the same moronic demonstration where I start at one side of the lecture table and walk to the other side and then ask . On the one hand, there's the sum of the smaller motions that I made: two meters east, two meters south, two meters west; resulting in a total walk of six meters. On the other hand, the end point of my walk is two meters to the south of my starting point. So which answer is correct? The question is ambiguous and depends on whether the questioner meant to ask for the distance or displacement. Let's clarify by defining each of these words more precisely. Displacement (symbolized d or s), also called length or distance, is a one-dimensional quantity representing the separation between two defined points. Analyzing motion can get complicated. Learning precise vocabulary will help. Displacement occurs when one party unfairly or inappropriately replaces another. If you arrive at work to find someone else sitting at your desk, you might want to. ![]()
displacement (psychology)
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