Advanced Topics
In a nutshell: Fluids and pressure explain phenomena from blood flow to airplane flight.
## Go with the Flow: Understanding Liquids and Gases
Fluids (liquids and gases) behave differently from solids. This unit covers how fluids move, how they push on objects, and why things float.
### Key Principles
- **Buoyancy**: Why some things float and others sink.
- **Pascal's Principle**: Pressure applied to a fluid is transmitted undiminished.
- **Bernoulli's Equation**: Fast-moving fluids have lower pressure.
### MCAT Essentials
You'll work with equations like \( P = \frac{F}{A} \) and \( \rho = \frac{m}{V} \), and understand real-world systems like blood flow and air travel.
### Everyday Connections
- Blood pressure cuffs use fluid pressure.
- Airplanes use Bernoulli's principle to create lift.
P = \frac{F}{A}
Examples
- Measuring a patient's blood pressure.
- Explaining how a straw draws up liquid.
Key terms
- Buoyancy
- The upward force on an object in a fluid.
- Density
- Mass per unit volume of a substance.