Question 1

When the formula v = fl is changed to c = fl,the c represents the constant symbol for:

Accepted Answer

A)  wavelength 
B)  frequency 
C)  amplitude 
D)  the speed of light 
A)  wavelength 
B)  frequency 
C)  amplitude 
D)  the speed of light

Question 2

The inverse square law relates the intensity (of light/x-rays)to:

Accepted Answer

A)  velocity 
B)  time 
C)  mass 
D)  distance 
A)  velocity 
B)  time 
C)  mass 
D)  distance

Question 3

Alpha particles consist of:

Accepted Answer

A)  two protons and two electrons 
B)  two protons and two neutrons 
C)  two electrons and two neutrons 
D)  none of the above 
A)  two protons and two electrons 
B)  two protons and two neutrons 
C)  two electrons and two neutrons 
D)  none of the above

Question 4

X-rays are produced:

Accepted Answer

A)  from unstable atoms 
B)  using fast-moving electrons 
C)  using fast-moving atoms 
D)  using fast-moving metals 
A)  from unstable atoms 
B)  using fast-moving electrons 
C)  using fast-moving atoms 
D)  using fast-moving metals

Question 5

Radio waves are used in:

Accepted Answer

A)  computed tomography 
B)  ultrasound 
C)  radiography 
D)  magnetic resonance imaging 
A)  computed tomography 
B)  ultrasound 
C)  radiography 
D)  magnetic resonance imaging

Question 6

Frequency is typically measured in:

Accepted Answer

A)  hertz 
B)  feet 
C)  centimeters 
D)  meters 
A)  hertz 
B)  feet 
C)  centimeters 
D)  meters

Question 7

All of the electromagnetic radiations are capable of ionizing matter.

Accepted Answer

A) True 
 B)False

Question 8

Gamma rays are produced:

Accepted Answer

A)  from unstable atoms 
B)  using fast-moving electrons 
C)  using fast-moving atoms 
D)  using fast-moving metals 
A)  from unstable atoms 
B)  using fast-moving electrons 
C)  using fast-moving atoms 
D)  using fast-moving metals

Question 9

The formula E = hf demonstrates that:

Accepted Answer

A)  as frequency increases,energy decreases 
B)  as frequency increases,energy increases 
C)  as energy increases,heat decreases 
D)  as energy increases,heat increases 
A)  as frequency increases,energy decreases 
B)  as frequency increases,energy increases 
C)  as energy increases,heat decreases 
D)  as energy increases,heat increases

Question 10

The half-life of technetium-99m is 6 hours.How many unstable atoms will remain after 12 hours?

Accepted Answer

A)  One sixth of the original amount 
B)  One fourth of the original amount 
C)  One third of the original amount 
D)  Half of the original amount 
A)  One sixth of the original amount 
B)  One fourth of the original amount 
C)  One third of the original amount 
D)  Half of the original amount

Question 11

The electromagnetic radiation used in tanning beds is:

Accepted Answer

A)  visible light 
B)  infrared light 
C)  microwaves 
D)  ultraviolet light 
A)  visible light 
B)  infrared light 
C)  microwaves 
D)  ultraviolet light

Question 12

Electromagnetic energy cannot travel through a vacuum.

Accepted Answer

A) True 
 B)False

Question 13

In the formula E = hf,h represents:

Accepted Answer

A)  Planck's constant 
B)  frequency 
C)  energy 
D)  electricity 
A)  Planck's constant 
B)  frequency 
C)  energy 
D)  electricity

Question 14

What is the frequency of electromagnetic radiation if the wavelength is 1 × 10⁻⁴ m?

Accepted Answer

A)  3 × 10-12 Hz 
B)  3 × 10-4 Hz 
C)  3 × 104 Hz 
D)  3 × 1012 Hz 
A)  3 × 10-12 Hz 
B)  3 × 10-4 Hz 
C)  3 × 104 Hz 
D)  3 × 1012 Hz

Question 15

Half-life is:

Accepted Answer

A)  the rate at which a radioactive material decays 
B)  half the time it takes for all the radioactivity to decay 
C)  the rate at which particulate radiation is emitted from a radioactive atom's nucleus 
D)  none of the above 
A)  the rate at which a radioactive material decays 
B)  half the time it takes for all the radioactivity to decay 
C)  the rate at which particulate radiation is emitted from a radioactive atom's nucleus 
D)  none of the above

Question 16

Higher energy radiation acts more like waves than like particles.

Accepted Answer

A) True 
 B)False

Question 17

The process of removing an electron from an atom is:

Accepted Answer

A)  annihilation 
B)  atomization 
C)  ionization 
D)  none of the above 
A)  annihilation 
B)  atomization 
C)  ionization 
D)  none of the above

Question 18

In the formula E = hf,E represents:

Accepted Answer

A)  Planck's constant 
B)  frequency 
C)  energy 
D)  electricity 
A)  Planck's constant 
B)  frequency 
C)  energy 
D)  electricity

Question 19

The general process of a radioactive element giving off excess energy and particles to regain stability is:

Accepted Answer

A)  radioactivity 
B)  radioactive decay 
C)  ionization 
D)  electron emission 
A)  radioactivity 
B)  radioactive decay 
C)  ionization 
D)  electron emission

Question 20

In the formula E = hf,f represents:

Accepted Answer

A)  Planck's constant 
B)  frequency 
C)  energy 
D)  electricity 
A)  Planck's constant 
B)  frequency 
C)  energy 
D)  electricity

When the formula v = fl is changed to c = fl,the c represents the constant symbol for:

The inverse square law relates the intensity (of light/x-rays)to:

Alpha particles consist of:

X-rays are produced:

Radio waves are used in:

Frequency is typically measured in:

All of the electromagnetic radiations are capable of ionizing matter.

Gamma rays are produced:

The formula E = hf demonstrates that:

The half-life of technetium-99m is 6 hours.How many unstable atoms will remain after 12 hours?

The electromagnetic radiation used in tanning beds is:

Electromagnetic energy cannot travel through a vacuum.

In the formula E = hf,h represents:

What is the frequency of electromagnetic radiation if the wavelength is 1 × 10⁻⁴ m?

Half-life is:

Higher energy radiation acts more like waves than like particles.

The process of removing an electron from an atom is:

In the formula E = hf,E represents:

The general process of a radioactive element giving off excess energy and particles to regain stability is:

In the formula E = hf,f represents:

Introduction to the Imaging Sciences

Structure of the Atom

X-Ray Circuit

The X-Ray Tube

X-Ray Production

X-Ray Interactions With Matter

Image Production

Image Characteristics

Radiographic Exposure Technique

Scatter Control

Image Receptors

Automatic Exposure Control

Image Intensified Fluoroscopy

Additional Equipment

Computed Tomography

Filters

Exam 3: Electromagnetic and Particulate Radiation

When the formula v = fl is changed to c = fl,the c represents the constant symbol for:

The inverse square law relates the intensity (of light/x-rays)to:

Alpha particles consist of:

X-rays are produced:

Radio waves are used in:

Frequency is typically measured in:

All of the electromagnetic radiations are capable of ionizing matter.

Gamma rays are produced:

The formula E = hf demonstrates that:

The half-life of technetium-99m is 6 hours.How many unstable atoms will remain after 12 hours?

The electromagnetic radiation used in tanning beds is:

Electromagnetic energy cannot travel through a vacuum.

In the formula E = hf,h represents:

What is the frequency of electromagnetic radiation if the wavelength is 1 × 10⁻⁴ m?

Half-life is:

Higher energy radiation acts more like waves than like particles.

The process of removing an electron from an atom is:

In the formula E = hf,E represents:

The general process of a radioactive element giving off excess energy and particles to regain stability is:

In the formula E = hf,f represents:

Introduction to the Imaging Sciences

Structure of the Atom

X-Ray Circuit

The X-Ray Tube

X-Ray Production

X-Ray Interactions With Matter

Image Production

Image Characteristics

Radiographic Exposure Technique

Scatter Control

Image Receptors

Automatic Exposure Control

Image Intensified Fluoroscopy

Additional Equipment

Computed Tomography

Filters