Moving

Moving refers to a change in position of an object over time. In physics, motion is described relative to a frame of reference and analyzed in terms of kinematics (displacement, velocity, acceleration) and dynamics (forces). Common categories include translational motion, rotational motion, and oscillatory motion. An object's motion is often described by its trajectory and by whether its speed is constant or changing.

Key concepts include displacement, the straight-line distance from start to end with a direction; velocity, displacement per unit time including direction; speed, the magnitude of velocity; and acceleration, the rate of change of velocity. In inertial frames, Newton's laws relate motion to applied forces. Equations of motion describe position over time under constant acceleration; more complex cases use calculus and vector analysis.

Everyday usage of motion refers to relocation, such as moving from one residence to another. This process involves planning, packing, transport, utilities, and updating records. Logistics, labor, and timing affect cost and disruption. Individuals may experience changes in routines, social ties, and adaptation after a move.

Motion perception is how the brain interprets movement from visual stimuli, enabling balance, navigation, and interaction with the environment. In culture and media, moving images are produced through filming or animation techniques that simulate motion by sampling and persistence of vision.

Measurement of motion employs instruments such as accelerometers and gyroscopes; in medicine and sports, motion tracking uses cameras or sensors. In physics, standard units are meters for displacement, meters per second for velocity, and meters per second squared for acceleration.