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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
