90 cards
____ are characterized by their ability to flow and conform to the shapes of their containers.
Fluids and solids can exert forces perpendicular to their surface, although only solids can withstand ____ forces.
The ratio of their mass to their volume is known as ____ .
The ____ of any volume of a given substance with a known density can be calculated by multiplying the substance’s density by its volume and…
The weight of any volume of a given substance with a known density can be calculated by ____.
The density of a fluid is often compared to that of pure water at 1 atm and 4°C, a variable called ____.
The density of a fluid is often compared to that of pure water at ____°C, a variable called specific gravity.
The ____ of a fluid is often compared to that of pure water at 1 atm and 4°C, a variable called specific gravity.
It is at ____°C that water has a density of exactly 1 g/cm 3 .
It is at 1 atm and 4°C that water has a density of exactly ____.
Specific gravity equation:____
____ equation:
is equal to .
____ is a ratio of the force per unit area.
Pressure is a ratio of ____.
Pressure equation:____
The SI unit of pressure is ____.
1 pascal is equivalent to ____.
____ Pa = 760 mmHg ≡ 760 torr = 1 atm
1.013 × 10 5 Pa = ____ mmHg ≡ 760 torr = 1 atm
1.013 × 10 5 Pa = 760 mmHg ≡ ____ torr = 1 atm
1.013 × 10 5 Pa = 760 mmHg ≡ 760 torr = ____ atm
____ pressure changes with altitude.
Atmospheric pressure changes with ____.
____ pressure is the sum of all pressures at a certain point within a fluid.
Absolute pressure is equal to ____.
____ pressure is equal to the pressure at the surface of the fluid (usually atmospheric pressure) plus the pressure due to the fluid itself.
____ pressure is the name for the difference between absolute pressure and atmospheric pressure.
Gauge pressure is the name for ____.
The equation for absolute pressure is: ____
The equation for ____ is:
Note that when P 0 = P atm , then P gauge = ____.
P gauge = ____
____ = P – P atm = ( P 0 + ρ g z ) – P atm
____ is the study of fluids at rest and the forces and pressures associated with standing fluids.
____ principle states that a pressure applied to an incompressible fluid will be distributed undiminished throughout the entire volume of t…
Pascal’s principle states ____.
Hydraulic machines operate based on the application of Pascal’s principle to generate ____.
Hydraulic machines operate based on the application of ____ principle to generate mechanical advantage.
____ principle governs the buoyant force.
Archimedes’ principle governs the ____ force.
When an object is placed in a fluid, the fluid generates a ____ against the object that is equal to the weight of the fluid displaced by th…
When an object is placed in a fluid, the fluid generates a buoyant force against the object that is equal to ____.
The direction of the buoyant force is always opposite to the direction of ____.
If the maximum buoyant force is larger than the force of gravity on the object, the object will ____
If the maximum buoyant force is ____ than the force of gravity on the object, the object will float.
If the maximum buoyant force is smaller than the force of gravity on the object, the object will ____
If the maximum buoyant force is ____ than the force of gravity on the object, the object will sink.
If the object is less dense than the fluid it is in, then the object will ____
If the object is more dense than the fluid it is in, the object will ____
Fluids experience ____ forces with other molecules of the same fluid.
Fluids experience cohesive forces with ____.
Fluids experience ____ forces with other materials.
Fluids experience adhesive forces with ____.
____ is a curving of the surface of a liquid in a container that is due to the cohesive and adhesive forces in the liquid.
Meniscus is a curving of the surface of a liquid in a container that is due to ____.
A ____ meniscus forms when the adhesive forces of the liquid are greater than the cohesive forces.
A concave meniscus forms when the ____e forces.
A ____ meniscus forms when the cohesive forces of the liquid are greater than the adhesive forces.
A convex meniscus forms when the ____e forces.