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force on a body caused by the pull of
gravity on it

acceleration due to gravity and represented
by the symbol _

The product of the mass of an object and its velocity is
calledechan

done on an object is the force applied times the
distance over which it is applied

rate of doing work

1 hp = _W

ability to do work

2 forms of mechanical energy

e energy associated with the motion
of an object

is the stored
energy of position or configuration

is a form of energy that is very important to radiologic technologists.
is the kinetic energy of the random motion
of molecules.

heat transfer

transfer of heat through a material
or by touching.

mechanical transfer of hot molecule in a gas or liquid from one place to another

transfer of heat by the emission of infrared radiation

measures temperature and has 2 reference point - boiling and freezing point

kerma

kinetic energy transferred from photons
to electrons during ionization and excitation

unit of radiation exposure
or intensity.

is the radiation energy absorbed per unit mass and has
units of J/kg or Gyt.

Occupational radiation monitoring
devices are analyzed in terms of