# Physics Course/Force/Force

## ForceEdit

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

${\displaystyle P={\frac {F}{A}}}$

### 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

${\displaystyle W=Fs=Fvt=pv}$
${\displaystyle W=F\int v(t)dt}$

### EnergyEdit

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

${\displaystyle E={\frac {W}{t}}=F{\frac {s}{t}}=Fv=Fat=pa}$
${\displaystyle E={\frac {F}{t}}\int v(t)dt}$

## 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

${\displaystyle F=ma}$
${\displaystyle F=m{\frac {v}{t}}={\frac {p}{t}}}$

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

${\displaystyle F=m{\frac {dv(t)}{dt}}}$

### Gravitational ForceEdit

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

${\displaystyle g=G{\frac {m}{r^{2}}}}$
${\displaystyle F_{g}=Mg=G{\frac {mM}{r^{2}}}}$

### ElectroMotive ForceEdit

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

${\displaystyle F_{E}=qE}$

### ElectroMagnetoMotive ForceEdit

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

${\displaystyle F_{B}=\pm vB}$

### ElectroMagnetic ForceEdit

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

${\displaystyle F_{E}B=F_{E}+F_{B}=q(E\pm vB)}$

## SummaryEdit

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 = ${\displaystyle {\frac {mv}{t}}}$  = ${\displaystyle {\frac {p}{t}}}$
Gravitation Force Earth's Force to pull an object toward the earth Fg = m g = ${\displaystyle G{\frac {mM}{R^{2}}}}$
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 ${\displaystyle F_{e}=K{\frac {Q_{+}Q_{-}}{R^{2}}}}$
ElectroMotive Force Force causing a stationary charge to move in straigh line ${\displaystyle F_{E}=QE}$
ElectroMagnetoMotive Force Magnetic Force that cause moving charge to move up or down perpendicular to initial direction of travel ${\displaystyle F_{B}=QvB}$
ElectroMagnetic Force The sum of Electrostatic Force and ElectroMagneto Force ${\displaystyle F_{E}B=F_{E}+F_{B}=Q(E+vB)}$

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