Force is the pull or push on an object which can change the velocity of the object on which it is applied. We can say that if force is applied on an object from one direction and there is no opposing force, then the object will move.Force is represented by magnitude and direction. It is a vector quantity. It is measured by Newton’s law. 
Pressure can be explained as force applied on a unit area. The formula used to find out pressure is P=F/A.When the force is applied over a large area, then the pressure developed is lower as compared to that developed on a smaller area.The unit of pressure is Pascals’law. Pressure is a scalar quantity as it is not dependent upon the direction; it is only dependent upon magnitude.
Force is a simple push or pull
pressure, we can say that it is the effect of that push or pull