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70 Cards in this Set
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Force

mass times acceration


push ot pull

is a force


mass

total amount of matter


weight

is measurment of gravity times mass


torque

force like quanitity in rotational mechical system


net force

sum of two forces


prime movers

pressure difference (fluid systems) voltage (electrical systems) temperture (thermal systems)


density

mass times volume


hydrometer

measure density or specific gravitity in fluids


pressure

unit of force divided by unit of area


manometer

measures pressure difference


types of fluids

hydrolic(liquid) and pneumatic(gas).


gases are

compressible


liqids

noncompressible


ablsolute pressure

measure in referenece to vacuum (zero pressure)


weight density

in ratio to an objects weight to its volume


voltage

comes in two forms direct current (DC) and alternating current (AC)


voltometer

measures voltage differnece


multimeter

measures voltage, amperage, and resistence


electrical circuits

contain a sorce of (battery), conducter (wires) , and a load (light bulb) switch (to turn it on)


tempreture differnece

acts as a prime mover in thermal systems because heat always moves from warmer rregions to cooler regions


heat

is a form of energy charecterized by the vibrating movement of atoms and molecules


tempreture

is the measurement of average energy of motion of molecules in a substance


thermalcouples

are three wires of two different metals to measure temperature


degree symbol

is the F and C when giving a temperature


work

force times distance


inout work

work being put into the system


output work

work done by the system


efficiency

is output work divided by input work multiplied by 100


spring scales

used to measure input and output work


rotaional systems

work is equal to times the angle of which the lever arm moves


radian

57.3 degress


basic english unit

ft lb


si unit

Nm or 1 joul


linear mechical work

mass moved in a straight line


angular mechical work

mass moved on an axis


mechical work

causes a object to start moving, stop moving, or to change direction.


fluid work

pressure difference times volume moved ( W= Dp*V) or (W=p*DV).


closed fluid system

fluid is reused such as a hydrolic brake.


elictrical work

is done by voltage being moved a specific amount


rotaional systems

work is equal to times the angle of which the lever arm moves


radian

57.3 degress


basic english unit

ft lb


si unit

Nm or 1 joul


linear mechical work

mass moved in a straight line


angular mechical work

mass moved on an axis


mechical work

causes a object to start moving, stop moving, or to change direction.


fluid work

pressure difference times volume moved ( W= Dp*V) or (W=p*DV).


closed fluid system

fluid is reused such as a hydrolic brake.


elictrical work

is done by voltage being moved a specific amount


coulomb

charge = 6.25 times 10to the 18th power.


basic unit of electrical work

one joul = 1 volt * coulomb


input work done by a pump or motor

will be given in jouls


rate

displacement times elapsed time.


velocity

measure of mechincal work


speed

similar to velocity, but its a scalar (no directinal rotation).


angular rate

expressed in si as rad per sec and in engish as rev per min.
6.28 rad in one rev (360 degrees) 

strobe scope

measures angular rate


acceration

rate at which speed increases or decreases.


flow rate

is the volume of fluid moved in a given period of time(Qv)


viscosity

thickness


electrical rate

amount of charge moved in coulombs


milliampre

1/1000amps


microampre

1*10 to the 6


hertz

measures frequnecy of alternating currents


osilloscope

measures voltage


heat flow rate

tranfering of heat.


dewar flask

used to contain and store energy


thermocouple themometer

measures heat flow


resistence

force times rate
