Question 1

The energy of a photon is directly proportional to its _____.

Accepted Answer

A)  amplitude 
B)  frequency 
C)  velocity 
D)  wavelength 
A)  amplitude 
B)  frequency 
C)  velocity 
D)  wavelength B

Question 2

If the wavelength of a beam of electromagnetic radiation increases by a factor of 2,then its frequency must _____.

Accepted Answer

A)  double 
B)  increase four times 
C)  decrease by half 
D)  remain constant 
A)  double 
B)  increase four times 
C)  decrease by half 
D)  remain constant C

Question 3

The lowest energy range of the electromagnetic spectrum is _____.

Accepted Answer

A)  sound waves 
B)  radio waves 
C)  gamma rays 
D)  microwaves 
A)  sound waves 
B)  radio waves 
C)  gamma rays 
D)  microwaves B

Question 4

The four properties of photons are _____,_____,_____ and _____.

Accepted Answer

A)  size, shape, spin, mass 
B)  frequency, mass, amplitude, wavelength 
C)  frequency, wavelength, velocity, amplitude 
D)  refraction, velocity, spin, amplitude 
A)  size, shape, spin, mass 
B)  frequency, mass, amplitude, wavelength 
C)  frequency, wavelength, velocity, amplitude 
D)  refraction, velocity, spin, amplitude

Question 5

The reduction of radiation intensity due to scattering and absorption is called _____.

Accepted Answer

A)  reflection 
B)  refraction 
C)  attenuation 
D)  dispersion 
A)  reflection 
B)  refraction 
C)  attenuation 
D)  dispersion

Question 6

If the intensity of light from a flashlight is 4 millilumens (mlm)at a distance of 3 feet,what will the intensity be at 6 feet?

Accepted Answer

A)  0.4 millilumens 
B)  1 millilumen 
C)  2 millilumens 
D)  16 millilumens 
A)  0.4 millilumens 
B)  1 millilumen 
C)  2 millilumens 
D)  16 millilumens

Question 7

The mass equivalent of a 100 KeV photon of radiation can be calculated using the _____.

Accepted Answer

A)  inverse square formula 
B)  equivalent Planck equation 
C)  relativity formula 
D)  Planck quantum equation 
A)  inverse square formula 
B)  equivalent Planck equation 
C)  relativity formula 
D)  Planck quantum equation

Question 8

The intensity of radiation on an object is reduced with distance because the radiation _____.

Accepted Answer

A)  reduces its velocity 
B)  increases in wavelength 
C)  loses its energy 
D)  is spread out over a greater area 
A)  reduces its velocity 
B)  increases in wavelength 
C)  loses its energy 
D)  is spread out over a greater area

Question 9

Gamma rays are produced in the _____ of the atom.

Accepted Answer

A)  outer electron shell 
B)  inner electron shell 
C)  nucleus 
D)  K-shell 
A)  outer electron shell 
B)  inner electron shell 
C)  nucleus 
D)  K-shell

Question 10

Photons with the highest frequencies have the _____.

Accepted Answer

A)  highest velocity 
B)  lowest energy 
C)  longest wavelengths 
D)  shortest wavelengths 
A)  highest velocity 
B)  lowest energy 
C)  longest wavelengths 
D)  shortest wavelengths

Question 11

X-rays are usually identified by their _____.

Accepted Answer

A)  energy 
B)  velocity 
C)  wavelength 
D)  hertz 
A)  energy 
B)  velocity 
C)  wavelength 
D)  hertz

Question 12

Photons tend to interact with matter _____ their wavelength.

Accepted Answer

A)  equal in size to 
B)  larger in size than 
C)  smaller in size than 
D)  unequal in size to 
A)  equal in size to 
B)  larger in size than 
C)  smaller in size than 
D)  unequal in size to

Question 13

The diagnostic range of x-ray energy is _____.

Accepted Answer

A)  30 to 150 kVp 
B)  200 to 300 kVp 
C)  300 to 1000 kVp 
D)  over 1 MV 
A)  30 to 150 kVp 
B)  200 to 300 kVp 
C)  300 to 1000 kVp 
D)  over 1 MV

Question 14

The rate of rise and fall of a sine wave is called its _____.

Accepted Answer

A)  amplitude 
B)  frequency 
C)  wavelength 
D)  velocity 
A)  amplitude 
B)  frequency 
C)  wavelength 
D)  velocity

Question 15

The intensity of radiation _____ in _____ proportion to the square of the distance of the object from the source.

Accepted Answer

A)  increases, direct 
B)  decreases, direct 
C)  increases, inverse 
D)  decreases, inverse 
A)  increases, direct 
B)  decreases, direct 
C)  increases, inverse 
D)  decreases, inverse

Question 16

The _____ of electromagnetic radiation is constant.

Accepted Answer

A)  amplitude 
B)  velocity 
C)  frequency 
D)  wavelength 
A)  amplitude 
B)  velocity 
C)  frequency 
D)  wavelength

Question 17

What is the electromagnetic wave equation?

Accepted Answer

A)  $\mathrm { c } = \mathrm { f } \lambda$ 
B)  $c = f / \lambda$ 
C)  c = fv 
D)  $c = f - \lambda$ 
A)  $\mathrm { c } = \mathrm { f } \lambda$ 
B)  $c = f / \lambda$ 
C)  c = fv 
D)  $c = f - \lambda$

Question 18

A hertz (Hz)is equal to _____ cycle(s)per second.

Accepted Answer

A)  103 
B)  102 
C)  10 
D)  1 
A)  103 
B)  102 
C)  10 
D)  1

Question 19

The smallest quantity of any type of electromagnetic radiation is a(n)_____.

Accepted Answer

A)  photon 
B)  electron 
C)  neutrino 
D)  quark 
A)  photon 
B)  electron 
C)  neutrino 
D)  quark

Exam 3: Electromagnetic Energy

The energy of a photon is directly proportional to its _____.

If the wavelength of a beam of electromagnetic radiation increases by a factor of 2,then its frequency must _____.

The lowest energy range of the electromagnetic spectrum is _____.

The four properties of photons are _____,_____,_____ and _____.

The reduction of radiation intensity due to scattering and absorption is called _____.

If the intensity of light from a flashlight is 4 millilumens (mlm)at a distance of 3 feet,what will the intensity be at 6 feet?

The mass equivalent of a 100 KeV photon of radiation can be calculated using the _____.

The intensity of radiation on an object is reduced with distance because the radiation _____.

Gamma rays are produced in the _____ of the atom.

Photons with the highest frequencies have the _____.

X-rays are usually identified by their _____.

Photons tend to interact with matter _____ their wavelength.

The diagnostic range of x-ray energy is _____.

The rate of rise and fall of a sine wave is called its _____.

The intensity of radiation _____ in _____ proportion to the square of the distance of the object from the source.

The _____ of electromagnetic radiation is constant.

What is the electromagnetic wave equation?

A hertz (Hz)is equal to _____ cycle(s)per second.

The smallest quantity of any type of electromagnetic radiation is a(n)_____.

Essential Concepts of Radiologic Science

The Structure of Matter

Electricity, Magnetism, and Electromagnetism

The X-ray Imaging System

The X-ray Tube

X-ray Production

X-ray Emission

X-ray Interaction with Matter

Concepts of Radiographic Image Quality

Control of Scatter Radiation

Screen-Film Radiography

Screen-Film Radiographic Technique

Computers in Medical Imaging

Computed Radiography

Digital Radiography

Digital Radiographic Technique

Viewing the Digital Radiographic Image

Screen-Film Radiographic Artifacts

Screen-Film Radiographic Quality Control

Digital Radiographic Artifacts

Digital Radiographic Quality Control

Mammography

Mammography Quality Control

Fluoroscopy

Digital Fluoroscopy

Interventional Radiography

Computed Tomography

Human Biology

Fundamental Principles of Radiobiology

Molecular Radiobiology

Cellular Radiobiology

Deterministic Effects of Radiation

Stochastic Effects of Radiation

Health Physics

Designing for Radiation Protection

Patient Radiation Dose Management

Occupational Radiation Dose Management

Filters

The four properties of photons are ___,_,_ and ___.

The intensity of radiation _ in _ proportion to the square of the distance of the object from the source.