Physics topic
Fluids & matter simulations
Investigate pressure, upthrust, hydraulic systems and the microscopic motion behind diffusion.
How does a fluid transmit force?
Press a hydraulic piston and compare the movement of the other piston. Change the piston areas and relate the change in force to the distance travelled.
- Pressure and Pascal’s principle
- Density, displaced volume and upthrust
- Diffusion and Brownian motion

Start here
These labs provide a route into the topic. Make a prediction first, then use the controls to test it.
All fluids & matter experiments
Density & buoyancy2D →Density & buoyancy · 3D3D →Diffusion & Brownian motion · 3D3D →Hydraulic press · 3D3D →
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