Fluid Resistance

Which of the following is not considered a factor that causes resistance in pipes according to chapter 4.2?

• Viscosity of the liquid

• The radius of the pipe

• The material of the pipe

• The length of the pipe

What is drag?

• Friction due to surfaces touching

• When an objects speed is constant because of air resistance as it falls

• Friction due to a fluid

• Things that bring you down

Laminar flow is...

• When the flow of fluid is choppy and swirling

• When the flow of fluid looks clear

• When the flow of fluid is over a liquid that is more dense

• When the flow of fluid is smooth over a surface

Turbulent flow of fluid is...

• When it is very fast

• When is it very choppy and whorly

• When it it goes through openings

• When the fluid moves slower in varying paths

Drag decreases with speed:

• True

• False

Viscosity is realted to a fluids:

• External friction

• Internal friction

Strokes law can be used to calculate:

• The turbulence caused by fluids that slow down an object

• The laminar flow

• Drag force on the a sphere moving constant speed in a viscous fluid

• The terminal velocity of an object in freefall that is going at constant speed when the gravitational force equals the upward air resistance

Terminal velocity is:

• The turbulent speed of an object that has been slowed by fluid

• The speed of laminar flow

• The drag force on a sphere going constant speed in a viscous fluid

• When the drag force equals the gravitational force acting on a falling body now going at a constant speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Poiseuille law is used to calculate:

• the speed of laminar flow

• the volume flow rate or pressure drop of a viscous fluid flowing through the tube or pipe.

• the speed of turbulent flow

• he force required to move a sphere through a given viscous fluid at a low uniform velocity