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Fluid Pressure: Qualitative Observational Experiment
Aim
The aim of this experiment is to discover how the pressure in a fluid varies with depth. The observations will only allow a qualitative model to be constructed.
Prior Knowledge
- Knowledge of kinematics.
- Newton's Laws.
- Maybe impulse and momentum?
- Need to understand pressure.
Description of the Experiment
Three equal size holes are punched at different heights into the side of a two litre soda bottle.
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Questions
- Can you rank the initial velocities of the jets from smallest to largest?
- Approximately what is the velocity of the water inside the bottle?
- What caused the velocity of the water to change?
- Considering that the holes all have the same size, can you form a rough (qualitative) model of how the pressure in the water varies with depth?
