Difference between uniform and periodic.

Dear Student,

Motion means change in the position of a body with time.

Uniform Motion: 

A moving body that travels equal distances in equal time intervals is said to be in a state of uniform motion. The speed of the body is constant.

Example:A car going along a straight level road at steady speed

Periodic motion: is that motion which repeats itself after equal intervals of time. The interval of time is called the time period of periodic motion. Example: (i) motion of planets around the sun (ii) motion of the pendulum of a wall clock (iii) motion of the hands of a clock etc.

Regards