Speed

Velocity

Speed is the measure of how fastly an object is moving.

the direction of the movement of an object.

It is  a scalar quantity

It is a vector quantity

rate of change of distance

Rate of change of displacement

Speed of an object moving is never  negative

velocity of a moving object can be zero, positive or negative.

indicator of the rapidity of the object.

indicator of the position as well as the rapidity of the object.

It can be defined as the distance covered by an object in unit time.

Velocity can be defined as the displacement of the object in unit time.