Fluids Flashcards
Flow rate
How quickly a fluid flows in a given amount of time.
Force
Push or pull that causes change in movement.
Dynamic
Systems that involve movement
Aerodynamics
Air or gas moving around a solid object.
Hydrodynamics
The motion of fluid moves around a solid object.
Kinetic molecular theory
A list of rules about the three states solid, gas and liquid.
- all matter is composed of molecules or other particles
- particles are in consistent motion
- there are forces of attraction among particles
Melting
Process of changing a solid to a liquid.
Evaporation
Process of a liquid to gas
Condensation
Process of gas to liquid.
Solidification
Process of a liquid to a solid.
Sublimation
Process of solid to gas.
Laminar flow
When water flows in a strait or almost strait.
Turbulent flow
When the water doesn’t flow strait.
Drag
The resistance a object has against water or air.
Streamlined
Shapes that created laminar flow.
Viscosity
Resistance of a fluid to flowing and movement
Cohesion
The attractive forces between the particles of a fluid.
Adhesion
The attractive force between the particles of a fluid and the particles of another substance.
Surface tension
Increases attraction among the particles of the surface.
Viscometer
A instrument that measures viscosity.
Mass
Amount of matter in a object
Weight
The measurement of force of gravity pulling on a object.
Volume
Measure of the amount occupied by matter.
Meniscus
The slight curve of water that touches the container.
Displacement
The volume of a small irregular solid must be measured by it
Density
The mass of a substance per unit volume of a substance.
Buoyancy
The upward part of force exerted by fluid called buoyancy
Archimedes principle
The buoyant pull on a object immersed in a fluid equal to the weight of the fluid the object displaces.
Positive buoyancy
When a object rises in a fluid
Neutral buoyancy
When a object remains level in a fluid.
Negative buoyancy
When a object sinks in a fluid.
