UNIT C: FLUIDS (CH. 7, CH. 8 and 9.1)
- What are the functions of fluids? Provide examples of fluid technology.
- What are the 6 points of the Particle Theory?
- Make a particle sketch showing how the volume of a liquid changes when heat is added.
- What is thermal expansion and contraction? Use the particle theory to explain the concept.
- How does temperature affect the viscosity of a liquid? What about gas?
- What is flow rate? How is it measured? What factors can affect flow rate?
- What is density? Buoyancy? How do they help determine if an object would float or sink?
- What is the role of gravity in understanding buoyancy?
- What is Archimedes' Principle?
- How and why do objects (ie. a person, a boat, a ship) float differently in: fresh water? seawater? cold water? warm water?
- How does the Plimsoll line help cargo ships?
- What is pressure?
- What is the appropriate unit(s) for calculating pressure?
- How does pressure change due to: a) depth; b) flow of fluids; c) temperature?
- What is compression? How is compression related to pressure?
- What is a fluid system?
- What does Pascal's Law state? What does this have to do with pressure?
- 2 main systems of fluids are: hydraulics and pneumatics. How are these similar? Different? What does compressibility have to do with these 2 systems?
- What are pumps? Examples?
- What are valves?
