Download Directions: Determine whether the italicized term makes each

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?
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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?
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