Motion

When an object changes its position with change in time, it is called to be in motion. The rate of motion is called speed and gives the distance covered in unit time. The SI unit of velocity is meter per second. When an object moves on a straight path, its motion is called rectilinear motion. When an object moves on a curved path, its motion is called curvilinear motion. When a motion is repeated, it is called periodic motion. A car on a straight road shows rectilinear motion. A car on a curve shows curvilinear motion. A swing and a pendulum show periodic motion. All the watches work on the principle of periodic motion.

Motion Quiz