Question

Write the difference between contact force and field force​

Answer 1

A contact force exists when two objects ate in contact with each other. It is a direct force and require a contact. A field force is a force which does not require direct contact between the bodies. In this case, the objects interact without touching each other.

EXAMPLES (CONTACT FORCE)

Pushing a car up a hill or kicking a ball across a room are some of the everyday examples where contact forces are at work.

EXAMPLES (FIELD FORCE)

Examples of force fields include magnetic fields, gravitational fields, and electrical fields.

Answer 2

Contact forces are those forces that occur due to contact between the surfaces of two or more objects.

• For example : Normal reaction experienced while standing in an accelerating lift is an good example of contact force.

• Another example is friction. It occurs due to contact between bodies.

Field forces are those non-contact forces that can exert acceleration over a distance without contact.

• For example : Gravitational force, Electrostatic forces are field forces.

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