The net force is the overall force acting on an object when all the individual forces are combined. It determines the object's acceleration and direction.

The unit to measure force is the Newton (N).

Balanced forces are forces that are equal in size but opposite in direction, resulting in a net force of zero.

Unbalanced forces are forces that are not equal and opposite, resulting in a net force that causes an object to accelerate.

Net force is calculated by adding all the forces acting on an object, taking into account their direction.

When the net force is zero, the object remains at rest or continues to move at a constant velocity.

An example of balanced forces is two people pulling on opposite ends of a rope with equal strength.

An example of unbalanced forces is a person pushing a car, where the force of the push is greater than the friction opposing it.

A net force acting on an object causes it to accelerate in the direction of the net force.

Friction is a force that opposes the motion of an object, acting in the opposite direction of the movement.