This set covers all bold terms and important concepts in Abeka Physics Chapter 3: "The Liquid State" (pages 32-48).

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  • hydrologic system

    term for the water cycle

    surface tension

    term for a liquid's resistance to increase its surface area

    adhesion

    term for attraction between different kinds of molecules

    cohesion

    term for attraction between the same kinds of molecules

    capillary tubes

    tubes thin enough to show the effect of a higher final level of water

    capillarity

    term for the tendency of a liquid to rise in a narrow tube

    meniscus

    a curved surface of water inside a tube

    concave

    Since the edges of water reach outward in a glass tube, the meniscus is ______.

    convex

    Since the edges of mercury reach inward in a glass tube, the meniscus is ______.

    hydrostatics

    term for the study of liquids at rest

    force

    any push or pull on an object

    normal

    The force exerted by a liquid on a surface is always ____, or perpendicular, to the surface.

    pressure

    term for the amount of force brought to bear on a unit area

    P = F / A and P = pgh

    formulas for pressure

    Fw = pvg

    formula for the force of weight

    p = m/v

    formula for density

    V = Ah

    formula for the volume of a cylinder

    F = apgh and F = AP

    formulas for force on the bottom of a container

    F = 1/2 Apgh

    formula for force on the wall of a container

    P = 1/2 pgh

    formula for pressure on the wall of a container

    law of liquid pressure

    name for the equation P = pgh

    water head

    term for the distance below the highest level of water in a connected system, represented by "h"

    Pascal's principle

    principle that states that the pressure applied to any surface of a confined liquid is transmitted equally in every direction throughout the liquid

    hydraulic device

    term for any device that uses a confined liquid to multiply force

    buoyant force

    term for the difference between downward force and upward force on an object in a liquid

    Archimedes' principle

    principle that states that the buoyant force acting on a body submerged in a liquid is equal to the weight of the liquid displaced by that body

    hydrodynamics

    term for the study of liquids in motion

    viscosity

    term for a liquid's resistance to flow because of molecular attraction

    principle of viscosity

    term for the inverse relationship between flow rate and viscosity

    poise

    the units by which viscosity is measured

    cavitation

    term for the production of tiny vapor bubbbles within a real liquid as it flows through a pipe

    laminar flow

    term for an ideal liquid's tendency to flow in straight lines throughout the cross-sectional area

    eddy currents

    term for the currents that swirl against the flow of a real liquid due to friction between the liquid and the pipe

    volume flow rate

    measures the total volume of a liquid flowing past a point in one second, in m^3/s

    principle of continuity

    principle that states that the volume flow rate at any two points in a pipe must be constant

    A1V1 = A2V2

    formula for the principle of continutity

    lateral pressure

    term for the pressure at the walls of a channel, or on any surface in contact with a moving liquid

    decreases

    As lateral pressure increases, velocity squared _____.

    Bernoulli's principle

    term for the inverse relationship between lateral pressure and velocity squared

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