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RAD MIDTERM 1 TCDHA QUESTIONS WITH
CORRECT ANSWERS
A form of energy carried by waves or streams of particles is defined as...
ANSWER: Radiation
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 x-rays?
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a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph
ANSWER: the correct ANSWER is b. Image Receptor
Which subatomic particle carries a negative electrical charge?
a) A Neutron
b) A Proton
c) An Electron
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d) A Nucleon
ANSWER: the correct ANSWER is 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?
- Electrons
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- Alpha Particles
- Protons
- alpha particle decay
ANSWER: the correct ANSWER is 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 x-rays at the anode?