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70 Cards in this Set

  • Front
  • Back
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