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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Variables and some constants commonly used in physics ： ウィキペディア英語版 List of common physics notations This is a list of common physical constants and variables, and their notations. Note that bold text indicates that the quantity is a vector. ==Latin characters== | magnetic flux density also called the magnetic field density or magnetic induction | tesla (T), or equivalently, weber per square meter (Wb/m2) |- |rowspan=3 style="text-align: center" | $C$ | capacitance | farad (F) |- | heat capacity | joule per kelvin (J K−1), or equivalently, joule per degree Celsius (J °C−1) |- | constant of integration | varied depending on context |- |rowspan=4 style="text-align: center" | $c$ | speed of light (in vacuum) | 299,792,458 meter per second (m/s) |- | speed of sound | 340.29 meter per second (m/s) |- | specific heat capacity | joule per kilogram per kelvin (J kg−1 K−1), or equivalently, joule per kilogram per degree Celsius (J kg−1 °C−1) |- | viscous damping coefficient | kilogram per second (kg/s) |- | style="text-align: center" |$\backslash mathbf$ | electric displacement field also called the electric flux density | coulomb per square meter (C/m2) |- | style="text-align: center" |$D$ | density | kilograms per cubic meter (kg/m3) |- |rowspan=4 style="text-align: center" |$d$ | distance | meter (m) |- | impact parameter | meter (m) |- | diameter | meter (m) |- | differential (e.g. $dx$) | |- | style="text-align: center" |$d\backslash mathbf$ | differential vector element of surface area ''A'', with infinitesimally small magnitude and direction normal to surface ''S'' | square meter (m2) |- | style="text-align: center" |$dV$ | differential element of volume ''V'' enclosed by surface ''S'' | cubic meter (m3) |- | style="text-align: center" |$\backslash mathbf$ | electric field | newton per coulomb (N C−1), or equivalently, volt per meter (V m−1) |- | style="text-align: center" | $E$ | energy | joule (J) |- |rowspan=2 style="text-align: center" | $e$ | eccentricity | unitless |- | 2.71828... (base of the natural logarithm), electron, elementary charge | |- | style="text-align: center" |$\backslash mathbf$ | force | newton (N) |- |rowspan=3 style="text-align: center" | $f$ | frequency | hertz (Hz) |- | function | |- | friction | newton (N) |- | style="text-align: center" |$G$ | the gravitational constant | newton meter squared per kilogram squared (N m2/kg2) |- | style="text-align: center" | $g$ | acceleration due to gravity | meter per second squared (m/s2), or equivalently, newton per kilogramme (N/kg) |- | style="text-align: center" |$\backslash mathbf$ | magnetic field strength also called just magnetic field | ampere per meter (A/m) |- | style="text-align: center" |$H$ | Hamiltonian | joule (J) |- | rowspan=2 style="text-align: center" | $h$ | height | meter (m) |- | Planck's constant | joule second (J s) |- | style="text-align: center" |$\backslash hbar$ | reduced Planck's constant $\backslash textstyle\; \backslash left\; (\; \}$ | Cartesian x-axis basis unit vector | unitless |- |rowspan=2 style="text-align: center" |$\backslash mathbf$ | ''free'' current density, not including polarization or magnetization currents bound in a material | ampere per square meter (A/m2) |- | impulse | kilogram meter per second (kg m/s) |- | style="text-align: center" |$\backslash mathbf\}$ | Cartesian z-axis basis unit vector | unitless |- |rowspan=3 style="text-align: center" |$L$ | inductance | henry (H) |- | luminosity | watt (W) |- | angular momentum | newton meter second (N m s or kg m2 s−1) |- | style="text-align: center" | $l$ | length | meter (m) |- |rowspan=2 style="text-align: center" |$M$ | magnetization | ampere per meter (A/m) |- | moment of force often simply called moment or torque | newton meter (N m) |- | style="text-align: center" |$m$ | mass | kilogram (kg) |- |rowspan=2 style="text-align: center" |$N$ | normal vector | unit varies depending on context |- | atomic number | unitless |- |rowspan=2 style="text-align: center" |$n$ | refractive index | unitless |- | principal quantum number | unitless |- | style="text-align: center" |$P$ | power | watt (W) |- |rowspan=2 style="text-align: center" |$\backslash mathbf$ | momentum | kilogram meter per second (kg m/s) |- | pressure | pascal (Pa) |- |rowspan=2 style="text-align: center" |$Q$ | electric charge | coulomb (C) |- | Heat | joule (J) |- | style="text-align: center" |$q$ | electric charge | coulomb (C) |- |rowspan=4 style="text-align: center" |$R$ | electrical resistance | ohm (Ω) |- | Ricci tensor | unitless |- | radiancy | |- | gas constant | joule per kilogramme kelvin (J/kgK) |- |style="text-align: center" |$\backslash mathbf$ | radius vector (position) | meter (m) |- |style="text-align: center" |$r$ | radius of rotation or distance between two things such as the masses in Newton's law of universal gravitation | meter (m) |- |rowspan=3 style="text-align: center" | $S$ | surface area | m2 |- | entropy | joule per kelvin (J/K) |- | action | |- |rowspan=2 style="text-align: center" |$s$ | arc length | meter (m) |- | displacement | |- |rowspan=2 style="text-align: center" |$T$ | period | second (s) |- | thermodynamic temperature also called absolute temperature | kelvin (K) |- | style="text-align: center" |$t$ | time | second (s) |- | style="text-align: center" |$\backslash mathbf$ | four-velocity | meter per second (m/s) |- |rowspan=2 style="text-align: center" |$U$ | potential energy | joule (J) |- | internal energy | joule (J) |- |rowspan=2 style="text-align: center" |$u$ | relativistic mass | kilogram (kg) |- | energy density | joule per cubic meter (J/m3) or joule per kilogram (J/kg) depending on the context |- |rowspan=3 style="text-align: center" |$V$ | voltage also called electric potential difference | volt (V) |- | volume | cubic meter (m3) |- | shear force | |- | style="text-align: center" |$\backslash mathbf$ | velocity | meter per second (m/s) |- | style="text-align: center" | $W$ | mechanical work | joule (J) |- | style="text-align: center" | $w$ | width | meter (m) |- |rowspan=2 style="text-align: center" | $x$ | a generic unknown | varied depending on context |- | displacement | meter (m) |- | style="text-align: center" | $Z$ | electrical impedance | ohm (Ω) |} 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of common physics notations」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. 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