Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
59 Cards in this Set
- Front
- Back
|
Equation for mech. force
|
W=M*G T=F*L
|
|
|
A force is a
|
push or pull
|
|
|
mass is the
|
total amount of matter in a object
|
|
|
gravity =
|
9.8 meters/second ^ 2
|
|
|
torque
|
a forcelikequantityin rotational mechanicl systems
|
|
|
unit for torque
|
Lb*Ft
|
|
|
net force is the
|
sum of two forces
|
|
|
equillibrium=
|
when two forces are balanced on an object
|
|
|
density =
|
mass/volume
|
|
|
density of water
|
one
|
|
|
a hydrometer measures
|
density or specific gravity in liquids
|
|
|
english unit for pressure
|
psi
|
|
|
manometers measure
|
pressure diffrences
|
|
|
two types of fluid
|
hydraulic and pneumatic
|
|
|
gasse are compressable are liquids
|
no
|
|
|
pressure increase with
|
depth
|
|
|
absolute pressure is measured in refernce to
|
a vacuum
|
|
|
atmospheric pressure is
|
14.7 psi
|
|
|
gage pressure +atmospheric pressure =
|
total pressure
|
|
|
two forms of voltage
|
DC+AC
|
|
|
voltmeters measure
|
voltage diffrence
|
|
|
multimeter's measure
|
voltage amperage and resistance
|
|
|
positive ole electrode is the
|
anode
|
|
|
negative pole is the
|
cathode
|
|
|
electrical circuits contain
|
source,conductors,and a load
|
|
|
heat is a form of energy characterized by the ________ movement of atoms and molecules.
|
vibrating
|
|
|
____________ use three wires of two different metals to measure temperature
|
thermocouples
|
|
|
_____= force*distance
|
work
|
|
|
output work is the work done by the
|
system
|
|
|
spring scales are used to measure _________ and _________ force
|
input output
|
|
|
the basic English unit for work is
|
foot-pound
|
|
|
the basic Si unit for work is
|
Newton-meter
|
|
|
Linear =
|
straight line
|
|
|
angular =
|
axis
|
|
|
in a closed fluid system the fluid is
|
reused
|
|
|
to find the cross sectional area of a cylinder ca be found by multiplying
|
.7854*d^2
|
|
|
EW=V*
|
Q=charge
|
|
|
1 coulomb=
|
6.25*10^18 electrons
|
|
|
1 joule =
|
1 volt *coulomb
|
|
|
input work will be given in
|
joules
|
|
|
rate is a __________ like quantity divided by elapsed time
|
displacement
|
|
|
_________ is the measure of linear mechanical work
|
Velocity
|
|
|
velocity is a vector meaning
|
it has a speed and a direction
|
|
|
speed is ___________
|
scalar
|
|
|
Units of linear mechanical rate are __________ and__________
|
foot per second and meter per second
|
|
|
angular rate is measured in
|
RPM
|
|
|
there are 6.28 radians in one
|
revolution
|
|
|
a ___________ is used to measure angular rate
|
stroboscope
|
|
|
Viscosity is the quality of a substance elated to its
|
thickness
|
|
|
1 milliampere =
|
1/1000 amps
|
|
|
1 macro-ampere =
|
1*10 ^ -6 amps
|
|
|
a _________ is used to contain and store heat energy
|
Dewar flask
|
|
|
Resistance =
|
force divided by rate
|
|
|
______ friction must be overcome to start an object in motion
|
sliding
|
|
|
kinetic friction
|
must be overcome to keep an object in motion
|
|
|
static friction is ______ ______ than kinetic friction
|
always greater
|
|
|
laminar flow is
|
smooth steady undisturbed
|
|
|
Rf=Dp/____
|
Qv
|
|
|
conductors are materials such as __________
|
copper
|
