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UNIT 3 RADIOLOGY
PHYSICS FOR RADIOGRAPHY
Question | Answer |
---|---|
WHAT IS A PROTON? | POSITIVE CHARGED PARTICLE (+) |
WHAT IS A NEUTRON? | PARTICLES THAT HAVE NO ELECTRIC CHARGE |
WHAT IS ELECTRONS? | PARTICLES THAT ARE CHARGED |
DEFINE KINETIC ENERGY: | ENERGY OF MOTION |
DEFINE POTENTIAL ENERGY: | ABILITY TO WORK BY VIRTUE OF POSITION |
DEFINE ELECTROMAGNETIC : | AN ELECTRIC AND MAGNETIC DISTURBANCE TRAVELING THROUGH SPACE AT THE SPEED OF LIGHT |
AT WHAT SPEED DOES ELECTROMAGNETIC RADIATIONS TRAVEL? | THE SPEED OF LIGHT OR 186,000 MILES PER SECOND |
DIFFERENTIATE BETWEEN EM RADIATIONS THAT CAN IONIZE MATTER AND THOSE THAT CANNONT. | EM energies with a SHORT WAVELENGTH have a INCREASED frequency and therfore HIGH ENERGY EM energies with a LONG WAVELENGTH have a LOWER FREQUENCY and therefore LOWER ENERGY. |
LIST SOME CHARACTEERISITCS OF AND XRAY: | A form of electromagnetic energy with no mass - Travels at the speed of light = Can penetrate most forms of matter = Can not be seen, heard or felt. |
DEFINE CURRENT: | The quanity of electrons flowing in a circuit |
ID "CURRENTS" unit of measurement | 1mA = 1/1000 of an AMP |
DEFINE VOLTAGE | (Potential Difference) THE FORCE OR STRENGTH OF THE ELECTRON FLOW IN THE CURRENT |
WHAT IS THE MAIN PURPOSE OF A TRANSFORMER? | An ELECTRICAL SERVICE USED TO PRODUCE THE HIGH VOLTAGE NEEDED FOR XRAY PRODUCTION |