Umumiy fizik belgilar ro'yxati

Bu umumiy fizik konstantalar va o'zgaruvchilar va ularning belgilanishlari ro'yxati. Qalin matn vektor kattalik ekanligini bildiradi.

Lotin harflari

Belgi	Ma'nosi	SI (XBS)dagi birligi
$\mathbf {A}$	magnetic vector potential	tesla meter (T⋅m)
$A$	area	square meters (m²)
	amplitude	meter
	atomic mass number	unitless
$\mathbf {a}$	acceleration	meters per second squared (m/s²)
$\mathbf {B}$	magnetic flux density also called the magnetic field density or magnetic induction	tesla (T), or equivalently, weber per square meter (Wb/m²)
$C$	capacitance	farad (F)
	heat capacity	joule per kelvin (J⋅K⁻¹)
	constant of integration	varied depending on context
$c$	speed of light (in vacuum)	299,792,458 meters per second (m/s)
	speed of sound	meters per second (m/s)
	specific heat capacity	joule per kilogram per kelvin (J⋅kg⁻¹⋅K⁻¹)
	viscous damping coefficient	kilogram per second (kg/s)
$\mathbf {D}$	electric displacement field also called the electric flux density	coulomb per square meter (C/m²)
$D$	density	kilograms per cubic meter (kg/m³)
$D$	diameter	meter (m)
$d$	distance	meter (m)
	direction	unitless
	impact parameter	meter (m)
	differential (e.g. $dx$ )	varied depending on context
$d\mathbf {A}$	differential vector element of surface area A, with infinitesimally small magnitude and direction normal to surface S	square meter (m²)
$dV$	differential element of volume V enclosed by surface S	cubic meter (m³)
$\mathbf {E}$	electric field	newton per coulomb (N⋅C⁻¹), or equivalently, volt per meter (V⋅m⁻¹)
$E$	energy	joule (J)
$E$	Young's modulus	pascal (Pa) or newton per square meter (N/m²)
$e$	eccentricity	unitless
	2.71828... (base of the natural logarithm)	unitless
	electron	unitless
	elementary charge	coulomb (C)
$\mathbf {F}$	force	newton (N)
$F$	Faraday constant	coulombs per mole (C⋅mol⁻¹)
$f$	frequency	hertz (Hz)
	function
	friction	newton (N)
$G$	electrical conductance	siemens (S)
	universal gravitational constant	newton meter squared per kilogram squared (N⋅m²/kg²)
	shear modulus	pascal (Pa) or newton per square meter (N/m²)
$\mathbf {g}$	acceleration due to gravity	meters per second squared (m/s²), or equivalently, newtons per kilogram (N/kg)
$\mathbf {H}$	magnetic field strength	ampere per meter (A/m)
$H$	Hamiltonian	joule (J)
$H$	enthalpy	joule (J)
$h$	height	meter (m)
$h$	Planck constant	joule second (J⋅s)
$\hbar$	reduced Planck constant	joule second (J⋅s)
$I$	action	joule second (J⋅s)
	intensity	watt per square meter (W/m²)
	sound intensity	watt per square meter (W/m²)
	electric current	ampere (A)
	moment of inertia	kilogram meter squared (kg⋅m²)
$i$	intensity	watt per square meter (W/m²)
	imaginary unit	unitless
	electric current	ampere (A)
$\mathbf {\hat {\imath }}$	Cartesian x-axis basis unit vector	unitless
$\mathbf {J}$	current density	ampere per square meter (A/m²)
$\mathbf {J}$	impulse	kilogram meter per second (kg⋅m/s)
$\mathbf {j}$	jerk	meters per second cubed (m/s³)
$j$	imaginary unit (electrical)	unitless
$\mathbf {\hat {\jmath }}$	Cartesian y-axis basis unit vector	unitless
$K$	kinetic energy	joule (J)
$\mathbf {k}$	wave vector	radians per meter (m⁻¹)
$k$	Boltzmann constant	joule per kelvin (J/K)
	wavenumber	radians per meter (m⁻¹)
	stiffness	newtons per meter (N⋅m⁻¹)
$\mathbf {\hat {k}}$	Cartesian z-axis basis unit vector	unitless
$\mathbf {L}$	angular momentum	newton meter second (N⋅m⋅s or kg⋅m²⋅s⁻¹)
$L$	inductance	henry (H)
	luminosity	watt (W)
	Lagrangian	joule (J)
$l$	length	meter (m)
ℓ	azimuthal quantum number	unitless
$\mathbf {M}$	magnetization	amperes per meter (A/m)
$M$	moment of force often simply called moment or torque	newton meter (N⋅m)
$m$	mass	kilogram (kg)
$\mathbf {N}$	normal vector	unit varies depending on context
$N$	atomic number	unitless
$n$	refractive index	unitless
	principal quantum number	unitless
	amount of substance	mole
$P$	power	watt (W)
$P$	probability	unitless
$\mathbf {p}$	momentum	kilogram meter per second (kg⋅m/s)
$p$	pressure	pascal (Pa)
$Q$	electric charge	coulomb (C)
$Q$	heat	joule (J)
$q$	electric charge	coulomb (C)
$R$	electrical resistance	ohm (Ω)
	Ricci tensor	reciprocal square meter (m⁻²)
	radiancy	meter per second
	gas constant	joule per mole per kelvin (J⋅mol⁻¹⋅K⁻¹)
$\mathbf {r}$	radius vector (position)	meter (m)
$r$	radius or distance	meter (m)
$S$	surface area	m²
	entropy	joule per kelvin (J/K)
	action	joule second (J⋅s)
$\mathbf {s}$	displacement	meter (m)
$s$	arc length	meter (m)
$s$	distance	meter (m)
$T$	period	second (s)
	temperature	kelvin (K) or Celsius (C)
	kinetic energy	joule (J)
$t$	time	second (s)
$\mathbf {U}$	four-velocity	meter per second (m/s)
$U$	potential energy	joule (J)
$U$	internal energy	joule (J)
$u$	relativistic mass	kilogram (kg)
	energy density	joule per cubic meter (J/m³)
	specific energy	joule per kilogram (J/kg)
$V$	voltage also called electric potential difference	volt (V)
	volume	cubic meter (m³)
	shear force
$\mathbf {v}$	velocity	meter per second (m/s)
$W$	weight	newton (N)
$W$	mechanical work	joule (J)
$w$	width	meter (m)
$X$	electrical reactance	ohm (Ω)
$\mathbf {x}$	position vector	meter (m)
$\mathbf {x}$	displacement	meter (m)
$x$	a generic unknown	varied depending on context
$Y$	admittance	siemens (S)
$Z$	compressibility factor	unitless
$Z$	electrical impedance	ohm (Ω)
$Z_{0}$	impedance of free space	ohm (Ω)

Yunoncha belgilar

Belgi	Nomi	Ma'nosi	SI(XBS)dagi birligi
$\alpha$	alpha	alpha particle
		angular acceleration	radian per second squared (rad/s²)
		fine-structure constant	unitless
$\beta$	beta	velocity in terms of the speed of light c	unitless
$\beta$	beta	beta particle
$\gamma$	gamma	Lorentz factor	unitless
		photon
		gamma ray
		shear strain	radian
		heat capacity ratio	unitless
		surface tension	newton per meter (N/m)
$\Delta$	delta	change in a variable (e.g. $\Delta x$ )	unitless
$\Delta$		Laplace operator	per square meter (m⁻²)
$\delta$		displacement (usually small)	meter (m)
		Dirac delta function
		Kronecker delta (e.g $\delta _{ij}$ )
$\epsilon$	epsilon	permittivity	farad per meter (F/m)
$\epsilon$	epsilon	strain	unitless
$\varepsilon _{0}$	epsilon nought	vacuum permittivity constant	farad per meter (F/m)
$\zeta$	zeta	damping ratio	unitless
$\eta$	eta	angular jerk	radians per second cubed (rad⋅s⁻³)
		energy efficiency	unitless
		(dynamic) viscosity (also $\mu$ )	pascal second (Pa⋅s)
$\theta$	theta	angular displacement	radian (rad)
$\kappa$	kappa	torsion coefficient also called torsion constant	newton meter per radian (N⋅m/rad)
$\Lambda$	lambda	cosmological constant	per second squared (s⁻²)
$\lambda$		wavelength	meter (m)
		linear charge density	coulomb per meter (C/m)
		eigenvalue	non-zero vector
$\mathbf {\mu }$	mu	magnetic moment	ampere square meter (A⋅m²)
		coefficient of friction	unitless
		(dynamic) viscosity (also $\eta$ )	pascal second (Pa⋅s)
		permeability (electromagnetism)	henry per meter (H/m)
		reduced mass	kilogram (kg)
		gravitational parameter	cubic meter per second squared
$\mathbf {\mu } _{0}$	mu nought	vacuum permeability constant or magnetic constant	henry per meter (H/m)
$\nu$	nu	frequency	hertz (Hz)
		kinematic viscosity	meters squared per second (m²/s)
		neutrino
$\xi$	xi	electromotive force	volt (V)
$\pi$	pi	3.14159... (irrational number)	unitless
$\rho$	rho	mass density usually simply called density	kilogram per cubic meter (kg/m³)
		volume charge density	coulomb per cubic meter (C/m³)
		resistivity	ohm meter (Ω⋅m)
$\Sigma$	sigma	summation operator
$\sigma$		area charge density	coulomb per square meter (C/m²)
		electrical conductivity	siemens per meter (S/m)
		normal stress	pascal (Pa)
		scattering cross section	barn (10^-28 m^2)
		surface tension	newton per meter (N/m)
$\tau$	tau	torque	newton meter (N⋅m)
		shear stress	pascal (Pa)
		time constant	second (s)
		6.28318... (2π)	unitless
$\Phi$	phi	field strength	unit varies depending on context
$\Phi$		magnetic flux	weber (Wb)
$\phi$		electric potential	volt (V)
$\phi$		Higgs field work function
$\Psi$	psi	wave function	m^−3/2
$\Omega$	omega	electric resistance	ohm
$\omega$	omega	angular frequency	radian per second (rad/s)

Boshqa belgilar

Belgi	Nomi	Ma'nosi	SI(XBS)dagi birligi
$\nabla \cdot$	nabla nuqta	farqlash operatori </br> tez-tez "del nuqta" deb talaffuz qilinadi	metrga (m ^-1 )
$\nabla \times$	nabla xoch	curl operatori </br> ko'pincha "del cross" deb talaffuz qilinadi	metrga (m ^-1 )
$\nabla$	nabla	delta ( differensial operator )
$\partial$	"der", "dow", "die", "qisman" yoki oddiygina "d"	qisman hosila (masalan $\partial y/\partial x$ )
$\Box$	D'Alembert operatori	$\nabla ^{2}-\partial _{t}^{2}$
$\langle \,\,\rangle$	burchakli qavslar	o'rtacha ba'zan Maksvell-Boltzman taqsimotidan oshib ketadi
$\langle \ \|\ \rangle$	burchakli qavslar	Dirak yozuvi

Shuningdek qarang

Matematika va fanda qo'llaniladigan harflar ro'yxati
Matematik belgilar lug'ati
Lotin harflarining matematik qo'llanilishi ro'yxati
Matematika, fan va muhandislikda ishlatiladigan yunon harflari
Jismoniy doimiy
Jismoniy miqdor
Xalqaro birliklar tizimi
ISO 31

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