Motion in One Dimension – Notes
Motion and Measurement of Distance – Rest and Motion
A body is said to be at rest when it remains in its position for a long time (there is no change in its position).
A body is said to be in motion if it is changing its position with respect to its surrounding and time.
Motion that occurs along a straight line is called rectilinear motion.
Circular motion is the motion of an object, which moves at a fixed distance from a fixed point.
Periodic motion is a motion that repeats itself at regular intervals.
Sometimes an object can display combination of different types of motion.