Science, fluids

Fluid

Materials that have no fixed shape and can flow, such as liquids and gases.

Viscosity

The thickness or resistance to flow in a fluid.

Flow Rate

Measures how quickly a fluid moves, often expressed in liters per second.

Cohesion

The force of attraction between particles of the same substance, influencing how fluids flow.

Adhesion

The force of attraction between particles of a fluid and particles of other substances.

Surface Tension

The cohesion of particles on a liquid's surface that creates a 'skin' effect.

Laminar Flow

Smooth and regular flow of fluid, reducing energy use and drag.

Turbulent Flow

Irregular and choppy flow of fluid that can create resistance for moving objects.

Fluid Mechanics

The study of how fluids behave at rest and in motion.

Aerodynamics

The study of moving gases, particularly in relation to the lift in airplanes.

Hydrodynamics

The study of moving liquids.

What is the ‘Particle Theory of Matter’?

The theory that matter is made up of tiny particles that are always moving and have spaces between them.

How do you calculate flow rate?

flow rate = volume of fluid (mL or L) divided by (/) amount of time (s, min or h)

Examples of fluid flow and it’s importance in the human body

Ex. aerodynamics, controlling water flow & the food industry

Importance in the body:

• Blood flow

•Hemophilia

• Artificial hearts

Positive + negative impacts of controlling fluids. (give examples)

Pros:

• Electricity Generation

• Irrigation (Dams helping for agricultural reasons)

• Medically (blood flow)

• Food preservation

Cons:

• Pollution and environmental damage

• Disrupting habitats and fish populations