Open main menu

Wikibooks β

Physics Course/Force/Force

< Physics Course



Force is a term used to describe a quantity that acts on an object to change object's state or to perform a task on the object. Example Force used to push or pull a cart or force used to break a stick

Force's CharacteristicsEdit

Force's PressureEdit

Force exerts on a cross sectional area of a surface of an object is called Pressure


Work DoneEdit

The ability of a Force to carry out a task on an object is defined Work done on the object . Work done by a force on an object to move object over a distance s is defined as the product of Force and Distance move



The ability of a Force to carry out a task on an object over a period of Time .


Types of ForceEdit

Motion ForceEdit

Motion Force is a force used to set an object in motion . Force to make an object move is calculated by


For any motion of speed v(t) caused by a force


Gravitational ForceEdit

Attraction's Force of the Earth to attract any object toward the Earth


ElectroMotive ForceEdit

ElectroMotive Force is the electric force that set stationary charge to move in a straight horizontal line


ElectroMagnetoMotive ForceEdit

ElectroMagnetoMotive Force is the magnetic force that set the moving charge to move in perpendicular to the horizontal direction


ElectroMagnetic ForceEdit

ElectroMagnetic Force is the sum of the Electric Field Force and the Electric force



Force is used to to describe a quantity that acts on matter to perform a task

  1. To cause an object to move or to set an object in motion . Example to push or pull a door
  2. To cause matter to change its state . Example change Solid to Liquid to Gas
Force Definition Formula
Motion Force Force causes an object's motion F = m a =   =  
Gravitation Force Earth's Force to pull an object toward the earth Fg = m g =  
Friction Force Force one surface exerts on another surface
Elastic Force Elastic Force of a Spring F = - k x
Electrostatic Force Force of attraction of two stationary Unlike Charge  
ElectroMotive Force Force causing a stationary charge to move in straigh line  
ElectroMagnetoMotive Force Magnetic Force that cause moving charge to move up or down perpendicular to initial direction of travel  
ElectroMagnetic Force The sum of Electrostatic Force and ElectroMagneto Force  


  • []