| Pressure Energy | Potential energy | Kinetic energy |
| It is the energy possessed by liquid by virtue of its height or position above the surface of earth or any reference level taken as zero level. | It is the energy possessed by liquid by virtue of its height or position above the surface of earth or any reference level taken as zero level. | It is the energy possessed by a liquid by virtue of its motion or velocity. |
Pressure energy of the liquid PV
Pressure energy per unit mass of the liquid P/ρ | Potential energy of the liquid mgh Potential energy per unit mass of the liquid gh | Kinetic energy of the liquid 1/2 mv2 Kinetic energy per unit mass of the liquid 1/2 v2 |
| Pressure energy per unit volume of the liquid P. | Potential energy per unit volume of the liquid ρgh | Kinetic energy per unit volume of the liquid 1/2 ρv2 |
