Physics Formulas for motions

$For\quad speed,\quad { V=\frac { S }{ t } },\quad Where\quad V=speed,\quad S=\quad distance,\quad t=time$

$For\quad acceleration,\quad { a=\frac { V }{ t } }\quad where\quad a=acceleration\quad$

For the equation that connect, speed, velocity, acceleration, distance and time, we have four as listed below.

${ S=\frac { V+U }{ 2 } \times t\quad ,\quad where\quad V=final\quad velocity,\quad U=initial\quad velocity }$

V=U+2aS

$S=Ut+\frac { 1 }{ 2 } a{ t }^{ 2 }$

${ { V }^{ 2 }={ U }^{ 2 }+2aS }$

Physics formulas for work done

${ W=F\times S,\quad Where\quad W\quad =work done,\quad F\quad =force,\quad and\quad S=distance }$

$For\quad work\quad done\quad along\quad and\quad inclined\quad plane\\ \\ { W=F\times SCos\theta \quad ,\quad Where\quad \theta =angle\quad of\quad inclination }$

W=Mgh (work done when something fall from up

Physics formulas for energy

${ { For\quad kinetit\quad energy,\quad { E }_{ K }=\frac { 1 }{ 2 } M{ V }^{ 2 } }\quad where\quad m=mass,\quad v=velocity }$

E_K=mgh , m=mass, g=gravity h=height

Physics formulas for Power

${ Power=\frac { workdone }{ time\quad taken } }$

${ power=\frac { F\times S }{ t } ,F=force,S=distance\quad and\quad t=time }$

${ Power=F\times V,\quad where\quad V=velocity=\frac { S }{ t } }$

Physics formulas for linear expansion of solid

${ { \alpha =\frac { { L }_{ 2 }-{ L }_{ 1 } }{ { L }_{ 1 }({ \theta }_{ 2 }-{ \theta }_{ 2 }) } { K }^{ -1 } } }$

Physics formula for volume or cubic expansivity

${ \gamma =\frac { { V }_{ 2 }-{ V }_{ 1 } }{ { { V }_{ 1 } }{ (\theta }_{ 2 }-{ \theta }_{ 1 }) } }$

Physics formulas for area or superficial expansivity

${ { \beta =\frac { { A }_{ 2 }-{ A }_{ 1 } }{ { A }_{ 1 }({ \theta }_{ 2 }-{ \theta }_{ 1 }) } } }$

Physics formulas for current electricity

Q= It, where Q= electric charge, I =current, and t=time

V=IR, where V=potential difference in volts, R= resistance in ohms, and I= current in ampere

R= R₁ + R₂ + R₃ …(total resistance in series)

${ { I=\frac { E }{ R+r } } },\quad where\quad I=current,\quad E=e.mf,\quad R=external\quad resistance\quad and\quad r=internal\quad resistance$

${ \frac { 1 }{ { { R } } } =\frac { 1 }{ { R }_{ 1 } } +\frac { 1 }{ { R }_{ 2 } } +\frac { 1 }{ { R }_{ 3 } } ....(total\quad resistance\quad in\quad parallel) }$