C3P Sample Concept Development Concept Development Kinematics along the path investigates the motion that naturally defines the pat h of matter. First, motion solely along a straight line path is explored to investigate position, velocity and acceleration. Students create opera tional definitions that enable them to grasp concepts and understand how changes in position in time as related to velocity, changes in velocity in time as related to acceleration. Directional relationshi ps among position, velocity, acceleration are established. At this stage, creating graphs and reasoning are used extensively.
Force is mentioned only as something that creates acceleration.
Inertia is introduced on ly as a quantity connected to constant velocity along a straight-line path. Any moving object traces out a path through space and i n time. We can define this path as the axis of motion. If the path is curved, then so is the axis. We can draw an arrow of this magnitude at any point along the path and tangent to the path.