Fluid System

5. greek symbol used to denote a change
7. the rate of doing work
8. Molecules slide over each other moving but stay closely together.
12. mass divided by volume
13. The quantity of matter an object has regardless of its volume.
16. states that the flow (Q) of fluid is related to a number of factors such as pressure pipe radius and velocity (2 words)
17. force divided by area
18. irregular flow with eddies and whorls causing fluid to move in different directions.
19. unit for power
20. property of a fluid that has internal friction
23. unit for pressure
26. Molecules can only vibrate in place.
28. states that the buoyant force on an object submerged in a fluid is equal to the weight of the fluid that is displaced by that object (2 words)
30. A system in which the fluid is retained and recirculated
33. smooth flow over a surface in which the path of individual particles do not cross.
34. The space that a substance occupies.
35. a force moves an object through a distance.
36. the mass of fluid moved per unit time (3 words)

1. uses a liquid as the working fluid (2 words)
2. The upward force on an object immersed in a fluid (2 words)
3. the change in volume per unit time (3 words)
4. a material that can flow and has no definite shape of its own
6. The force exerted on an object by gravity.
9. A change in pressure at any point in a confined fluid is transmitted undiminished throughout the fluid (2 words)
10. prime mover in a fluid system
11. Within a horizontal flow of fluid points of higher fluid speed will have less pressure than points of slower fluid speed. (2 words)
14. occurs only when there is relative movement between an object and a fluid.
15. uses a gas as the working fluid (2 words)
21. the constant speed that occurs when the drag force equals the gravitational force. (2 words)
22. The fluid used by the system (2 words)
24. prime mover in a mechanical system
25. Electrons are stripped from the molecules because of high temperatures or electrical charges.
27. a system in which the fluid flows through one time only
29. greek symbol used to represent density
31. Molecules move freely around the container.
32. a device that measures rate of flow