Final answer:
The pressure difference a pump can produce between its inlet and outlet ports is known as the pressure head.
Step-by-step explanation:
In physics, the pressure difference a pump can produce between its inlet and outlet ports is known as the pressure head.
The pressure head is the difference in pressure between two points in a fluid system. It represents the amount of energy the pump can transfer to the fluid by overcoming the resistance of the system.
For example, in a hydraulic system, a pump creates a pressure difference, or pressure head, between the inlet and outlet ports. This pressure head allows the pump to move the fluid and exert forces in the system.