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- 1. Multiple Choice
The electrostatic force of attraction that holds the negative electrons in their orbit
Binding Energy
Ionization Energy
Electromagnetic Radiation
Braking Radiation
- 2. Multiple Choice
The amount of energy required to remove an electron from its orbit
Ionization Energy
Binding Energy
Electromagnetic Radiation
Braking Radiation
- 3. Multiple Choice
The process by which radiation results in the formation of a negatively charged electron and a positively charged ion
Binding Energy
Braking Radiation
Characteristic Radiation
Ionization
- 4. Multiple Choice
The number of protons in the nucleus
Atomic number
Atomic mass number
- 5. Multiple Choice
The total number of protons and neutrons in the nucleus
Atomic number
Atomic mass number
- 6. Multiple Choice
Quantum theory treats electromagnetic radiation as
Photons
Waves
Particles
- 7. Multiple Choice
The wave theory treats electromagnetic radiation as
Photons
Waves
Particles
- 8. Multiple Choice
Photons with shorter wavelengths have higher energy
True
False
- 9. Multiple Choice
The energy of the photon and its wavelength are directly proportional
True
False
- 10. Multiple Choice
Photons used in dental radiography have energies of
10 - 120 KeV
100 - 120 KeV
10 - 20 KeV
- 11. Multiple Choice
Characteristics of tungsten are ... (you can choose more than one answer)
high melting point
high atomic number
high vapour pressure
high thermal conductivity
- 12. Multiple Choice
The effective focal spot is smaller than the actual focal spot
True
False
- 13. Multiple Choice
When electrons from the cathode travel close to the nucleus of the tungsten atom, which will either decelerate this electron or stop it.
Braking radiation
Characteristic radiation
- 14. Multiple Choice
When the cathode electron collides with the inner shell electron and ejects it causes ionization of the atom.
Braking radiation
Characteristic radiation
- 15. Multiple Choice
When --- increases, the quality of the x-ray increases (you can choose more than one answer)
exposure time
tube current
tube voltage
target-patient distance
filtration
- 16. Multiple Choice
Milliamperage and exposure time are directly related
True
False
- 17. Multiple Choice
The intensity of radiation is inversely proportional to the square of the distance from the source of radiation.
True
False
- 18. Multiple Choice
If the distance between the patient and the target is increased to double, the intensity of the radiation will be...
double the original intensity
half the original intensity
quarter the original intensity
4 times the original intensity
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