# How does a vector quantity differ from a scalar quantity?

##### 1 Answer

A scalar quantity describes strictly only the magnitude, or amount, of something. It is represented by a numerical value only and gives no other information.

A vector quantity, on the other hand, describes *both* the magnitude and direction of something.

When trying to differentiate between scalar and vector quantities, one must keep their definitions in mind. Is the amount given just a numerical value, or does it include a direction as well?

Some examples of scalar quantities are energy, time, volume, temperature, and speed. All of these quantities simply have a magnitude, and if not associated with a specific direction, are scalar quantities

Some vector quantities include displacement, force, and velocity (which is not to be confused with speed! 5 m/s is a speed. 5m/s East is a velocity). All these quantities are associated with both a magnitude and a certain direction.