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Science Chapter 4
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Force
a push or pull that causes movement
Flow Rate
how quickly a fluid flows in a given amount of time
Dynamic
a term described systems that involve movement, such as moving fluids
Aerodynamics
air or gas moving around solid objects
Hydrodynamics
the motion of liquids (usually water) around solid objects
Melting
the process of a substance changing from a solid to a liquid
Evaporation
the process of changing a substance from a liquid to a gas
Condensation
the process of changing a substance from a gas to a liquid
Solidification
the process of changing a substance from a liquid to a solid
Sublimation
the process of changing water directly from a gas to a solid
or from a solid to a gas
Kinetic
Molecular Theory
1. All matter is composed of molecules or other types of
particles
2. Particles are in constant motion
3. There are forces of attraction among particles
Laminar Flow
flow in which a fluid travels in straight, or almost straight, lines
Turbulent Flow
fluid flow characterized by irregular patterns when water is
unable to flow in straight lines
Drag
a force (air or water resistance) that acts to slow a body
moving through a fluid
Streamlined
shaped to create laminar flow, has less air or water resistance (drag)
Viscosity
the resistance of a fluid to flowing and movement
Cohesion
the attractive forces among the particles of a substance
Adhesion
the attractive forces between the particles of a fluid and
the particles of another substance
Surface Tension
the increased attraction among the particles at the surface
of a liquid
Viscometer
an instrument that measures viscosity
Flow Rate Formula
volume of fluid (mL)
time (s)
Mass
the amount of matter in an object
Weight
measurement of the force of gravity pulling on the object
Volume
a measure of the amount of space occupied by matter
the volume of a rectangular solid FORMULA
volume = length x width x height
the volume of a small irregular solid FORMULA
Volume of object = (volume of water + object) – (volume of water)
Density
Den. Of
saltwater x 100% = .92g/cm3 x 100%
1.03 g/cm2
= 89%
Density
Den. Of
saltwater x 100% = .92g/cm3 x 100%
1.03 g/cm2
= 89%
Density – g/cm3
Density =
mass
– g/mL
Volume
Positive Buoyancy
Rise
Negative Buoyancy
Sink
Neutral Buoyancy
Stay
Buoyancy
the upward force that a fluid exerts on an object
Author
Anonymous
ID
5027
Card Set
Science Chapter 4
Description
Science Notes
Updated
2010-01-25T01:29:54Z
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