Distance
The total path covered by an object.
Scalar quantity
SI unit is m
Displacement
Shortest distance covered by an object.
Vector quantity
SI unit is m
Speed
Speed = distance/time
i.e. Rate at which an object covers a distance
It is a scalar quantity
SI unit m/s
Velocity
Velocity = displacement/ time
i.e. Rate and direction of change in the position of an object
It is a vector quantity
SI unit is m/s
Acceleration
Rate of change of velocity of an object with respect to time.
Acceleration = change in velocity/time
It is a vector quantity
SI unit is m/s^2