Equations
What is the equation used to calculate the density of an object?
Density = mass / volume
Hydraulic systems are pressurized systems that use moving _______.
Liquids
What are the 3 types of buoyant forces?
Positively buoyant, negatively buoyant, neutrally buoyant
What are the 3 states of matter?
Solid, Liquid, Gas
What is the equation used to calculate the volume of an object?
Volume = mass / density
Pneumatic systems are pressurized systems that use moving _______.
Gas (air)
What is displacement?
Occurs when something takes the place of something else.
True or False: A cork is an example of an object with a low density.
True
A 'thick' liquid is said to have ________ viscosity.
Mass = density x volume
Your respiratory system is an example of a _________ system.
Pneumatic
What is density?
A measure of how tightly packed/how heavy the molecules are in an object.
True or False: Honey has a low viscosity.
False (it is thick and highly viscous)
What are the 6 factors that affect viscosity?
Friction, Cohesion, Adhesion, Temperature, Concentration, Particle Size (Remember: Funny Cows Always Take Cool Pictures)
If water has a density of 1g/cm3 and an object has a density of 2.65g/cm3, will the object float or sink in the water?
Sink (object will not be buoyant)
The heart is an example of a _________ system.
Hydraulic
What is volume?
How much space an object takes up.
What is Pascal's Law?
If pressure is exerted on a fluid, it will be evenly distributed throughout the fluid.
What are the 4 factors that affect the flow of fluids?
Temperature, Pressure, Viscosity, Density (Remember: Tiny Pirates Vacuum Donuts)
If the initial water level was 95mL and the new water level is 115mL after displacement of an object, what is the volume of the object?
20cm3
In order for gas to be used in a pneumatic system, it must be ________.
Compressed
What is mass?
Measurement of the amount of matter in an object.
What is the name of the person who discovered that 'the buoyant force is equal to the weight of the displaced water.'
Archimede's
What do fish have that allows them to adjust their buoyancy?
Swim bladders