Definition
A quantity that is defined by both its magnitude and direction.
向量
Force is a vector quantity because it has both magnitude and a direction in which it acts.
力是一个向量量，因为它既有大小又有作用方向。
Displacement is a vector quantity, representing the change in an object's position and its direction.
位移是一个向量量，代表物体位置的变化及其方向。
Both velocity and acceleration are vector quantities, as they each possess a magnitude and a direction.
速度和加速度都是向量量，因为它们各自具有大小和方向。