Key Terms and Concepts Drag force Drag coefficient Newton's First Law (Law of Inertia) Terminal Speed Position Velocity Newton's Second Law Define position, velocity, and acceleration and explain how ...Key Terms and Concepts Drag force Drag coefficient Newton's First Law (Law of Inertia) Terminal Speed Position Velocity Newton's Second Law Define position, velocity, and acceleration and explain how they are related. Calculate the drag force on objects moving through fluids. Translate motion graphs into descriptions of motion in terms of position, velocity and acceleration. Translate descriptions of motion into motion graphs. Apply Newton’s Second Law and basic kinematics to motion analysis.