Final answer:
An object moving at a constant speed of 5 m/s to the north for 1 hour is undergoing uniform motion. Its movement is characterized by velocity, which is a vector quantity because it includes both speed and direction.
Step-by-step explanation:
An object moving 5 m/s to the north and continuing at this rate for 1 hour is describing uniform motion. This is because the object's speed and direction are constant over time. When considering such motion, it's important to differentiate between scalar and vector quantities.
A scalar quantity is one that has only magnitude (size or amount) and no direction. Examples of scalar quantities include temperature and distance. In contrast, a vector quantity has both magnitude and direction, such as displacement and velocity.
In this scenario, the description includes both speed (5 m/s) and a specific direction (north), which together form a vector known as velocity. Therefore, the motion of the object is best described as velocity, a vector quantity.