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Ch. 8-9 Fluid Mechanics/Heat
Terms in this set (25)
Pressure applied to a fluid in a closed container is transmitted equally to every point of the fluid and to the walls of the container is called ______ ______.
The concentration of matter of an object, measure as the mass per unit volume of a substance is called _____ _____.
Any object completely or partially submerged in a fluid experiences an upward buoyant force equal in magnitude to the weight of the fluid displaced by the object is known as _____ _____.
The magnitude of the force on a surface per unit area is called ______.
How does volume relate to liquids and gasses?
Liquids have a definite volume; gasses do not
A nonsolid state of matter in which the atoms or molecule are free to move past each other, as in a gas or a liquid is called a ______.
A fluid that has no internal friction or viscosity and is incomprehensible is called an _____.
The amount of internal friction within a fluid is called _____.
The energy of a substance due to both the random motions of its particles and the potential energy that results from the distances and alignments between the particles is called _____ _____.
At thermal equilibrium, the _____ _____ exchanged between two objects equals zero.
State Bernoulli's Principle:
the pressure in a fluid decreases as the fluid's velocity increases
The state in which two objects in physical contact with each other have identical temperatures is called _____ _____.
The upward force exerted by a liquid on an object immersed in or floating on the liquid is called _____ _____.
What are two common properties of fluids?
ability to flow & alter their shape
What is the relationship between energy and temperature?
When energy is added temperature and kinetic energy increases. Adding or removing energy changes temperature.
The physical change of a substance from one state (solid, liquid, or gas) to another at constant temperature and pressure is called _____ _____.
What does an incompressible fluid mean?
density of the fluid everywhere always remains constant
A measure of the average kinetic energy of the particles in a substance is called ______.
A type of latent heat that occurs during boiling is called ____ __ ________.
heat of vaporization
The energy transferred between objects because of a difference in their temperatures is called ______.
The quantity of heat required to raise a unit mass of homogeneous material 1 degree in a specified way given constant pressure and volume is called _____ _____ ______.
specific heat capacity
Write units to express specific heat capacity:
The energy per unit mass that is transferred during a phase change of a substance is called _____ _____.
A type of latent heat that occurs during melting is called _____ __ ______.
heat of fusion
How can airplanes fly according to Bernoulli's Principle?
-Lower pressure cause by the increased speed of the air over the wing
-Since the pressure is higher beneath the wing the wing is pushed upwards
THIS SET IS OFTEN IN FOLDERS WITH...
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Ch. 2 Test
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