TCDHA RAD Midterm 1 Exam Questions and Answers All Correct

TCDHA RAD Midterm 1 Exam Questions and Answers All Correct A form of energy carried by waves or streams of particles is defined as... - AnswerRadiation The x-ray was discovered by... - Answer-Wilhelm Roentgen Who MODIFIED the paralleling technique with the introduction of the long-cone technique? - Answer-F. Gordon Fitzgerald Which of the following would you place in the patient's mouth in order to take dental xrays? a) Image b) Image Receptor c) Radiograph d) Dental radiograph - Answer-b. Image Receptor Which subatomic particle carries a negative electrical charge? a) A Neutron b) A Proton c) An Electron d) A Nucleon - Answer-c. An Electron What is the binding energy or binding force of an electron is... - Answer-Determined by the distance between the orbiting electrons and the nucleus A spontaneous emission of radiation from the disintegration of unstable atomic nuclei is... - Answer-Radioactivity Cathode rays are derived from which of the following types of particulate radiation? a. Electrons b. Alpha Particles c. Protons d. alpha particle decay - Answer-a. Electrons What type of radiation includes x-rays and visible light? - Answer-Electromagnetic Approximately what percentage of the kinetic energy of the electrons is converted to xrays at the anode? - Answer-Less than 1% What restricts the size of the x-ray beam? - Answer-The Lead Collimator Which form of the x-ray beam is more detrimental to the patient and operator? - Answer-Scatter Radiation What happens with the electrons when the kilovoltage is increased? - Answer-The electrons moves from the CATHODE to the ANODE with more speed Higher-energy x-ray beam with increased penetrating ability results by... - Answer-When the kilovolt is increased (1) Density is the overall darkness or blackness of a dental image. (2) When the kilovoltage is increased while other exposure factors remain constant, the resultant image exhibits a decreased density and appears lighter