* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Directions: Determine whether the italicized term makes each
Survey
Document related concepts
Accretion disk wikipedia , lookup
Navier–Stokes equations wikipedia , lookup
Drag (physics) wikipedia , lookup
Hydraulic power network wikipedia , lookup
Coandă effect wikipedia , lookup
Magnetohydrodynamics wikipedia , lookup
Aerodynamics wikipedia , lookup
Reynolds number wikipedia , lookup
Derivation of the Navier–Stokes equations wikipedia , lookup
Hydraulic machinery wikipedia , lookup
Bernoulli's principle wikipedia , lookup
Transcript
Name: _____________________________________________ Period: _____ Date: _________________________ Solids, Liquids & Gases – Section II – Properties of Fluids Directions: Determine whether the italicized term makes each statement true or false. If the statement is true, write true in the blank. If the statement is incorrect, write in the blank the term that makes the statement true. ____________________ 1. A fluid is a liquid or a solid. ____________________ 2. Buoyancy is the ability of a fluid to exert a downward force on an object immersed in it. ____________________ 3. If the buoyant force on an object is greater than the weight of the object, the object will sink. ____________________ 4. The buoyant force on an object in a fluid is equal to the weight of the fluid displayed by the object. ____________________ 5. Archimedes’ principle states that any pressure applied to a fluid is transmitted unchanged throughout the fluid. ____________________ 6. As the velocity of a fluid increases, the pressure exerted by the fluid increases. ____________________ 7. Temperature and viscosity are inversely related; that is, higher temperature means lower viscosity. Directions: Answer the following questions on the lines provided. 8. A hydraulic machine can be used to lift extremely heavy objects. Why is the fluid in a hydraulic machine a liquid rather than a gas? __________________________________________________________________________________________ __________________________________________________________________________________________ 9. A 15-N block of wood is floating in water. If the mass of the wood is evenly distributed throughout the block, and one-third of the block is above water, what is the weight of the water displaced by the block in terms of Newtons? Hint: use Archimedes’ principle. 10. A passenger jet in the air increases its speed. Does the downward force of the air on top of the wings increase or decrease? __________________________________________________________________________________________