Description of the speed of movement The X -- t images of three objects moving in a straight line are compared 1. Displacement size:---- 2. Distance:---- 3. Average speed:-----

Description of the speed of movement The X -- t images of three objects moving in a straight line are compared 1. Displacement size:---- 2. Distance:---- 3. Average speed:-----

1. Displacement comparison value
2. Compare the sum of the absolute values of the extreme points of each graph
3. The average speed depends on the time and chart