Pendulum motion refers to the swinging movement of an object, known as a pendulum, that is attached to a fixed point. When the pendulum is pulled to one side and released, it swings back and forth in a regular, repeating pattern. This motion is influenced by the force of gravity, which pulls the pendulum downward, and the tension in the string or rod that holds it. The time it takes for a pendulum to complete one full swing, called the period, depends on its length and the acceleration due to gravity. A longer pendulum swings more slowly, while a shorter one swings more quickly. This predictable behavior makes pendulums useful in clocks and other timing devices.