A & C
What is Action Force
The force applied to an object
What is density?
The amount of mass a material has
Hydraulic systems
A system that uses water or another liquid under pressure to move something
Law
A statement that describes a relationship or pattern that has been observed to be true time and time again.
Pascal (Pa)
A unit for pressure. Newtons per square meter.
What is aerodynamics?
The study of moving gasses
What is a dependent variable
In an experiment the variable, you observe or measure to see how it is affected by changes to the independent variable
Hydraulics
The study of pressure in liquids
Mechanical advantage
The number of times that a machine can increase or decrease the effort force
A system that uses air or another gas under pressure to move
What is compressibility?
The ability to be squeezed into a smaller volume
Flow rate
The volume of fluid that moves from one point to another in a certain amount of time
Hydrodynamics
The study of moving liquids
Reaction force
The force of an object applies in response to an action force.
Pneumatic
The study of pressure in gasses
What is a controlled variable?
An experiment that remains the same while you change the conditions
Fluid
Anything that flows; includes liquid and gasses
Hydrometer
A tool that measures the density of liquids
Pressure
The effect that a force has because of the surface area it acts on
Independent variable
In an experiment the variable you choose to test and change
Viscosity
The property that describes the thickness of a fluid or how resistant it is to flow.