Wolfram|Alpha

Physics

Mechanics ››

compute mechanical work
work F=30N, d=100m
compute centripetal acceleration
centripetal acceleration, 30mph, 500 ft
do a gravitation calculation
gravitation calculation

Statistical Physics ››

do an ideal gas law computation
ideal gas law 2.2mol, 2.0atm, 500K
find the Maxwell speed distribution of a gas
msd for neon at 800 K

Thermodynamics ››

do computations with Joule's law
Joule's law u=3V, R=1ohm for 10s
analyze an adiabatic process
adiabatic process Vi=10L, Vf=2L, pi=1atm

Electricity & Magnetism ››

use input fields to specify data for an Ohm's law computation
Ohm's law calculator
find equations associated to a magnetized object
magnetized ball

Optics ››

do computations using the thin lens equation
lens, f=20ft, o=400ft
compute a diffraction pattern for a circular aperture
circular aperture a=0.2mm, lambda=650nm

Relativity ››

do relativistic addition of velocities
add velocities, 8e7 m/s, 8e7 m/s
compute relativistic momentum
relativistic momentum electron, 0.8c

Nuclear Physics ››

compute the stopping power of a material
stopping power air 0.5MeV electron
get information about an isotope
iodine 131

Quantum Physics ››

compute photon energy given wavelength
photon energy 435nm
compute a Compton wavelength
Compton wavelength proton
look up atomic spectra
atomic spectrum of nitrogen

Particle Physics ››

get information about a particle
proton
do a calculation with particle properties
mass proton / electron
compare the values of a property for a class of particles
mass boson

Astrophysics ››

compute the orbital period of a massive body orbiting another
Kepler's third law, 4 solar masses, 5 Earth masses, 2.5 AU
compute cosmological properties of the universe
1 billion years after the big bang
compute properties of a black hole
black hole 10 solar masses

Physical Constants ››

get the value of a physical constant
speed of light Schwinger field strength
do computations involving constants
Planck mass / mass of electron

Physical Principles ››

find out about Newton's laws
Newton's laws
find out about Brownian motion
Brownian motion
learn about a paradox in quantum mechanics
EPR paradox