1. Motion in a straight line along a single axis or direction
The car's linear motion was smooth and straight down the highway.
O movimento linear do carro era suave e direto na rodovia.
2. In physics, motion where all points of a moving body follow parallel straight paths
The elevator's linear motion carries passengers straight up and down.
O movimento linear do elevador leva os passageiros direto para cima e para baixo.
3. Change occurring at a constant rate along a single dimension
Linear motion differs from circular or rotational motion.
O movimento linear difere do movimento circular ou rotacional.