Uniform motion

Non-uniform motion

An object covers equal distance which is equal interval of the time then object is said to have uniform motion.

An object covers the  unequal distance which is equal intervals of time then the object is said to have non-uniform motion.

Steady speed or velocity

Variable speed or velocity

Graph plotting between distance and time is always a straight line.

Graph plotting between distance and time is a

not a straight line.

Acceleration is Zero.

Acceleration is non-zero.