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Welcome to your page – your study space. If you are about to enter into the gravity of subjects then this space is your

a, A

Acceleration (length / time^{2}), atomic mass (total number of protons and neutrons in an atom)

A

Amperes* (electric current = C / s), Angstroms* (length = 10^{ - 10} m), amplitude (length)

b

Intercept of a linear graph, drag coefficient (mass / time)

B

Magnetic field (force / current)

c

Speed of light (2.998 x 10^{8} m/s), specific heat (energy / mass x temperature), concentration (number / volume), speed of sound

cal

Calories* (energy = 4.186 J)

cc

Cubic centimeter

c_{ g}

Group velocity

c_{ p}

Phase velocity

C

Celsius* (temperature), Coulombs* (electric charge), capacitance (charge / electric potential), heat capacity (energy / temperature), concentration

Cal

Kilocalories* (energy)

Ci

Curie* (unit of radiation, equivalent to 3.7 x 10^{10} decays/s)

d

Distance

D

Diffusion constant (area / time)

db

Decibels (relative intensity)

e

Electron, charge of an electron (1.602 x 10^{-19}C)

eV

Electron Volts* (energy = 1.602 x 10^{-19}J)

E

Energy (force x length, mass x velocity^{ 2}), electric field (force / charge)

f

Frequency (1 / time), focal length

f, F

Force (mass x acceleration)

F

Flow (volume / time), Farads* (capacitance = C / V), Fermi* (length = 10^{-15}m)

g

Grams* (mass), acceleration due to gravity (9.81 m/s^{2}); sometimes centrifugal acceleration

G

Newton's constant (6.673 x 10^{-11} Nm^{2 }/ kg^{2}), Gauss* (magnetic field =10^{-4}T), free energy

h

Height, Planck's constant (angular momentum = 6.626 x 10^{-34}Js), latent heat (energy / mass)

hr

Hours* (time = 3600 s)

H

Enthalpy (energy)

Hz

Hertz (1 / s)

I

Moment of inertia (mass x length^{2}), current (charge / time), intensity (power / area), image distance

J

Joules* (energy = N m), flux (number / area time)

k

Boltzmann constant (1.381 x 10^{-23} J/K), spring constant (force / length), thermal conductivity (power / length temperature), wave number (1 / length)

K

Kinetic energy, Kelvin* (temperature = C + 273.15)

l

Length, liters* (volume = 1000 cc), orbital quantum number (dimensionless, denotes angular momentum), mean free path (length)

lb

Pounds* (weight; 1 kg weighs 2.2 lb)

L

Angular momentum (momentum x length, moment of inertia x angular velocity)

m

Mass, meters* (length), slope of a linear graph, magnetic moment (current x area), magnetic quantum number (dimensionless, denotes orientation of angular momentum)

m_{e}

Mass of electron (9.109 x 10^{-31}kg)

m_{n}

Mass of neutron (1.675 x 10^{-27}kg)

m_{p}

Mass of proton (1.673 x 10^{-27}kg)

mi

Miles* (length = 1.61 km)

min

Minutes* (time = 60s)

mmHg

Millimeters of mercury (pressure = 1333 dynes / cm^{2})

M

Molecular weight (mass / mol), magnification (dimensionless)

n

Numbers of mols (dimensionless), number of loops (dimensionless), neutron, principle quantum number (dimensionless, denotes energy level), index of refraction (dimensionless)

N

Newtons* (force = kg m / s^{2}), number of particles, neutron number (number of neutrons in an atom)

N _{A}

Avogadro's number (dimensionless number of objects in a mol = 6.022 x 10^{23})

O

Object distance

p

Proton

P

Momentum (mass x velocity), pressure (force / area), power (energy / time)

Pa

Pascals* (pressure = N / m^{2})

q, Q

Charge

Q

Heat (energy)

r

Radius (length), distance, rate (velocity)

R

Resistance (potential / current), gas constant (8.31 J / mol K)

Re

Reynolds number (dimensionless)

s

Seconds*, sedimentation coefficient (time), spin quantum number (dimensionless), lens strength (1 / length)

S

Entropy (energy / temperature)

t

Time

T

Tesla* (magnetic field = N / A m), temperature

U

Potential energy (mechanical, elastic, electrical), internal energy

v

Velocity (length / time), specific volume (volume / mass)

V

Velocity, volume (length^{3}), electric potential (electric field x length), voltage, Volts* (N m / C)

W

Watts* (power = J / s), weight (force), work (energy)

x, X

Horizontal position

y, Y

Vertical position or depth position in 3D problems

z, Z

Vertical position in 3D problems, atomic number (number of protons in an atom), valence

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