Materials 1

Select the equation for density

• Density = mass ÷ volume

• Density = volume÷ mass

• Density = mass x volume

The upthrust is equal to

• The mass of displaced fluid

• The weight of displaced fluid

• The volume of displaced fluid

• The weight of object

• The mass of object

F=6πηrv is called

• Stoke's Law

• Hooke's Law

• Newton's Law

• Avogadro's Law

F=6πηrv is the formula for

• drag force

• upthrust

• weight

• friction

In the formula F=6πηrv, η stands for

• viscosity

• number of moles

• number of molecules

• runniness

• temperature change

In the formula F=6πηrv, r stands for

• Radius of object

• viscosity

• Diameter of object

• Relative atomic mass

In the formula F=6πηrv, v stands for

• speed

• viscosity

• volume

• arbitrary value

Flow of fluids such that adjacent layers do not cross each other is called

• turbulent

• laminar

• layered

• smooth

Flow such that there are eddy currents etc.

• Turbulent

• Laminar

• Layered

• Smooth

For Stokes' Law to apply (select all that apply)

• The object must be small

• The object must be smooth

• The object must be moving slowly

• There must be laminar flow

• The object must be spherical