Fill in the Blanks Fall final fill in the blanksOnline version terms for fall physics by renee richardson 1 Acceleration Centripetal Inertia Torque parabola weight acceleration is the rate of change of velocity . The path of a projectile a . is the tendency of an object to maintain its state of motion . is the force that maintains the circular motion of a ball on a string . A change in the force of gravity acting on a object will affect the object's . is a product of lever arm and force .