Velocity or speed? Instantaneous or average? Keep building your physics vocabulary.

The goal of this video is to figure out what is the speed of that car, how is it different than velocity, and how do we represent motion on a piece of paper? Let's find out.

Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Velocity (v) is a vector quantity that measures displacement (or change in position, …

Velocity includes an object’s speed and its direction of motion. So, an object is accelerating if its speed is changing, direction is changing, or both are changing.

Calculate average speed and build understanding of speed, velocity, and acceleration. Discover the importance of reference frames and units in describing motion.

Speed describes how fast we go, while velocity describes how fast and in which direction. When the movement is along a line, velocity might be negative, but speed is always positive (or zero).

Learn how to find an object’s instantaneous speed or velocity in three ways - by using calculus, by looking at the slope of a given point on a graph of an object’s rate vs. time, or by using …

In everyday language, most people use the terms speed and velocity interchangeably. In physics, however, they do not have the same meaning, and they are distinct concepts.

Khan AcademySign up

Speed and velocity questionsUh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us. [Error code: Internal]