Final answer:
Static pressure is true; it is the pressure exerted by a fluid at rest and is exerted equally in all directions. It is often referred to as hydrostatic pressure and is a scalar quantity.
Step-by-step explanation:
Static pressure is indeed the pressure that exists without any flow. This is true, as static pressure is the pressure exerted by a fluid at rest in an enclosed space. According to principles of fluid mechanics, in a static fluid, pressure is exerted equally in all directions on account of the fluid's weight and external forces such as gravity. This is known as hydrostatic pressure, exemplified when measuring blood pressure or during weather forecasting in the form of high- or low-pressure systems. Pressure, defined as force per unit area, acts perpendicular to any surface within the static fluid, highlighting its nature as a scalar quantity without a specific direction.