Fluid Flow
The study of fluids in motion and the forces acting on them.
Question
Hydrodynamics
A substance that can flow and take the shape of its container.
A fluid
The attraction between molecules of the same substance.
Cohesion
An object shape that allows fluids to flow smoothly around it with minimal resistance.
streamlined
An example of fluid flow in the human body.
blood, saliva, urine, etc.
The measure of a fluid's resistance to flow.
viscosity
This fluid has a higher viscosity than water.
molasses
The attraction between molecules of different substances
adhesion
Smooth, orderly fluid flow in parallel layers with no disruption
laminar flow
This structure is used to control the flow of river water.
dam
When the temperature of most liquids increases, this happens to viscosity.
viscosity decreases
One factor that increases a liquid's flow rate by reducing viscosity.
higher temperature
Water droplets sticking together on a window demonstrate this property.
cohesion
Water sticking to the surface of a glass demonstrates this property.
adhesion
The branch of physics that studies how fluids move and the forces involved.
fluid dynamics
Name one factor besides temperature that increases flow rate.
greater pressure, lower viscosity or a larger pipe diameter
A student can do this to make honey flow more easily from a bottle.
warm the bottle
Heating honey changes this property, making it easier to pour.
viscosity
A positive effect of dams on the environment and society.
flood control, irrigation, or hydroelectric power generation
A health issue that may occur when blood flow is blocked in arteries.
heart attack or stroke
A streamlined shape reduces this force acting against motion through a fluid.
drag
When temperature decreases, this happens to a liquid's viscosity.
viscosity increases
The reason warming honey makes it flow more easily
heat lowers the viscosity of honey
A negative environmental impact of dams.
disruption of natural habitats or interference with fish migration
Name all four factors that can increase a liquid's flow rate.
higher temperature, greater pressure, larger diameter pipes/containers, and lower viscosity