Vector Quantity - GCSE Physics Definition

A vector quantity is a type of measurement used in physics that has both a size and a direction. This is different from a scalar quantity, which only has a size. Some common examples of vector quantities include force, velocity, and displacement. For instance, if you say a car is moving at 30 miles per hour to the north, you are describing a vector because you have given the speed (which is the size) and the direction (north). Understanding vector quantities is important because they help us describe the way things move and interact in the world around us.