Unsteady motion refers to the movement of an object that changes speed or direction over time. Unlike steady motion, where an object moves at a constant velocity, unsteady motion can involve acceleration or deceleration. This type of motion is common in everyday situations, such as a car speeding up or slowing down while driving. Examples of unsteady motion include a roller coaster as it climbs and descends hills, or a bicycle rider navigating through turns. In physics, understanding unsteady motion is essential for analyzing forces and predicting the behavior of moving objects in various scenarios.