ACTIVITY 4. Identify what is being referred on each numbered item. 1. It is defined as act or process of changing position to some reference during a period of time. 2. It refers to the shortest distance between the object's two positions. 3. It is defined as the rate of change of velocity with respect to time. 4. It is determined by measuring both the speed and direction in which an object is travelling. 5. It refers to "how much length or ground an object has covered during its movement