Gravitational fall, often referred to as free fall, occurs when an object is pulled toward the Earth by the force of gravity. This means that when you drop something, like a ball or a pencil, it accelerates downward until it hits the ground. The only force acting on it is gravity, which causes it to fall faster and faster as it descends. In a vacuum, where there is no air resistance, all objects fall at the same rate regardless of their mass. This was famously demonstrated by Galileo when he dropped two different weights from the Leaning Tower of Pisa. In everyday life, however, air resistance can slow down lighter objects, making them fall more slowly than heavier ones.