A force is defined as the application of push or pull on an object with a mass in such a way that it will affect the motion of an object when unopposed. It can cause an object to move from its state of rest, i.e., change its velocity or can change its direction of movement. It is an interaction that causes or changes the motion of an object.
Push is defined as a force that causes an object to move away from the person who is applying the force from its state of rest. When an object is pushed, it tends to move away. Kicking a ball, closing a door, pushing a trolley, and inserting a plug into the socket are all examples of push force.
The pull is defined as a force that causes an object to move towards the person who is pulling the object. Opening a door, plucking the string of a guitar, drawing a bucket of water from the well, and pulling the curtain are all examples of pull force.