Pressure in a Liquid
P = ρgh
Pressure (Pa) = Density (kg/m³) × g (9.81 m/s²) × Depth (m)
Total pressure also includes atmospheric pressure (101 325 Pa)
Total pressure also includes atmospheric pressure (101 325 Pa)
Controls
Current Measurements
Atmospheric P
101 325 Pa
Liquid P (ρgh)
9 810 Pa
Total Pressure
111 135 Pa
Data Table
| # | Liquid | Depth (m) | ρ (kg/m³) | ρgh (Pa) | Total P (Pa) |
|---|---|---|---|---|---|
| No readings yet. | |||||
Instructions:
- Select a liquid from the dropdown
- Adjust the Depth slider — the pressure gauge updates in real time
- Record readings at several depths for the same liquid
- Change the liquid and repeat at the same depths
- Compare results — how does liquid density affect pressure?
- Think: Why does pressure increase with depth?
Data point recorded!