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30 Cards in this Set

  • Front
  • Back
What does force equal
Mass times acceleration
What is a force
A push or pull
What is mass
the total amount of matter in an object
What is torque
the force-like quantity in a rotational mechanical system
What is net force
The sum of two forces
What is a prime mover
quantities that act in the same way as a force does in a mechanical system
how do you find density
density is found by dividing mass by volume
what is a hydrometer used to measure
density or specific gravity in liquids
How is pressure measured
its is measured by dividing a unit of force by a unit of area
What are manometers used to measure
pressure differences
The two types of fluid are
hydraulic and pneumatic
Are gases compressible
Yes
Are liquids compressible
No
What is pressure independent of
volume
How is absolute pressure measured
in reference to a vacuum
How is gage pressure measured
relative to atmospheric pressure
What equals total pressure
Gage pressure plus atmospheric pressure
What is weight density
the ratio of an objects weight to its volume
What two forms of voltage are there
AC, DC
What do voltmeters measure
Voltage difference
What do multimeter measure
Voltage, amperage, and resistance
What is the positive pole of a battery
Anode
What is the negative pole of a battery
Cathode
What do electrical circuits contain
A source, A load, and may also contain a control element
What is the prime mover in a thermal system
Temperature difference
What is heat
a form of energy characterized by the vibrating movement of atoms and molecules
What is temperature
the measure of the average energy of motion of molecules in a substance
What is a thermocouple
use three wires of two different metals to measure temperature
When is the degree symbol places before the C or the F
When giving a temperature
When is the degree symbol placed after the C or the F
when giving temperature difference