Free-Fall Motion means an object moving under the influence of gravity only. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. Example: When you drop a rock from a cliff? Ans: It falls downward. When a Skydiver jumps from a plane? Ans: He/She will fall to the ground. In this lecture briefly focus on Properties of Motion: Displacement; Velocity and Acceleration. Displacement is the distance and direction travelled.