Types of Force

Types of Force

Before trying to understand what are the different types of forces, let us try to define what is a force.
Force is defined as the push or pull acting on an object resulting from the other object’s interaction with the object.

The two types of force are:

  • Contact forces: The contact forces are the forces which occurs when we apply some effort on an object. Following is the classification of contact force:
  • Spring Force
    Applied Force
    Air Resistance Force
    Normal Force
    Tension Force
    Frictional Force
  • Non-Contact forces: The non-contact forces are the forces which occurs from a distance. Following is the classification of non-contact forces:
  • Electromagnetic Force
    Gravitational Force
    Nuclear Force

    Spring Force

    This force works opposite to the displacement of molecules. Like in a spring or elastic rubber band etc.

    Applied Force

    The force which is applied by our muscles is called applied force is also called muscular force. For example, pushing a box or kicking a ball etc.

    Air Resistance Force

    The force exerted by a gas acting upon a body on the opposite direction is called air resistance force. The examples are the forces experienced by a skydiver or a downhill skier etc.

    Normal Force

    It is referred to the force which acts when two surfaces are in contact. This force is perpendicular to the surface and acts in the direction out of the surface. For example, a box on top of a table.

    Tension Force

    This type of force is experienced by a rope or a string which holds an object. The tension force is always a pull not a push. The tension force is same throughout the cable. For example, a ball hanging with the help of a string.

    Frictional Force

    Frictional force acts when the objects on a surface is trying to moves relative to surface. For example, when a box is slided on a table.

    Electromagnetic Force

    These are the magnetic and electric interactions between atoms and molecules which helps in binding and defining the structure of solids. For example, in a magnet, poles attract each other.

    Gravitational Force

    The gravitational force is defined as the force acting between objects due to presence of matter. For example, Earth’s gravity acting upon objects and is given as:

    \(F_{grav}=m\times g\)

    Nuclear Force

    The force responsible for the bonding of nucleus is known as nuclear force. For example, forces resulting in radioactive decay.

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Practise This Question

For the following devices:

I: Fuse

II: Electric Bulb

III: Electric Bell

Select the correct option.

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