The hydrostatic form of this quantity is equal to density times g times h. The gauge form of this quantity is measured relative to that of the atmosphere in units such as pascals or atms
One form of this quantity is given by the time-averaged Poynting vector divided by the speed of light. It's not viscosity, but the dynamic form of this quantity is given by one-half times density times flow speed squared. The force of particles of light causes the "radiation" form of this quantity. According to Pascal's principle, a change in this quantity anywhere in an incompressible fluid is transmitted throughout. The hydrostatic form of this quantity is equal to density times g times h. The gauge form of this quantity is measured relative to that of the atmosphere in units such as pascals or atms [A T Ms]. For 10 points, name this quantity that is defined as force per unit area.
One form of this quantity is given by the time-averaged Poynting vector divided by the speed of light.
pressure [accept radiation pressure before mentioned; accept acoustic pressure or sound pressure]