| Name |
Equation |
| Wadell's Sphericity Factor |
 |
| Waveguide Impedance |
 |
| Wavelength of Electromagnetic Wave |
 |
| Wavelength of Particles |
 |
| Weight |
 |
| Wheatstone Bridge |
 |
| Wiedermann-Franz Law |
 |
| Wien's Displacement Law |
 |
| Wien's Distribution Law |
 |
| Wien's Emissive Power Law |
 |
| Williams-Landel-Ferry Equation |
 |
| Work |
 |
| Work Done in Isothermal Change |
 |
| Work Done, Rotational Dynamics |
 |