Deck 1: Essential Concepts of Radiologic Science

Question 1

What is the removal of an electron from an atom called?

A) ionization
B) pair production
C) irradiation
D) electricity

Answer 1

ionization

Question 2

An example of a derived quantity in mechanical physics is a _____.

A) meter
B) second
C) dose
D) volume

Answer 2

volume

Question 3

A moving object has _____ energy.

A) potential
B) kinetic
C) nuclear
D) electromagnetic

Answer 3

kinetic

Question 4

Computed tomography was developed in the _____.

A) 1890s
B) 1920s
C) 1970s
D) 1990s

Question 5

Atoms and molecules are the fundamental building blocks of _____.

A) energy
B) radiation
C) matter
D) gravity

Question 6

The biggest source of man-made ionizing radiation exposure to the public is _____.

A) atomic fallout
B) diagnostic x-rays
C) smoke detectors
D) nuclear power plants

Question 7

The formula E=mc² is the basis for the theory that led to the development of _____.

A) x-rays
B) electromagnetic radiation
C) nuclear power
D) cathode ray tubes

Question 8

Filtration is used to _____.

A) absorb low-energy x-rays
B) remove high-energy x-rays
C) restrict the useful beam to the body part imaged
D) fabricate gonadal shields

Question 9

Exposure is measured in units of _____.

A) becquerel
B) sieverts
C) meters
D) grays

Question 10

_____ is a special quantity of radiologic science.

A) Mass
B) Velocity
C) Radioactivity
D) Momentum

Question 11

The energy of x-rays is _____.

A) thermal
B) potential
C) kinetic
D) electromagnetic

Question 12

Today,radiology is considered to be a(n)_____ occupation.

A) safe
B) unsafe
C) dangerous
D) high-risk

Question 13

In the United States,we are exposed to _____ mR/year of ionizing radiation from the natural environment.

A) 0-5
B) 5-20
C) 20-90
D) 100-300

Question 14

Radio waves,light,and x-rays are all examples of _____ energy.

A) nuclear
B) thermal
C) electrical
D) electromagnetic

Question 15

Matter is measured in _____.

A) kilograms
B) joules
C) electron volts
D) rems

Question 16

The basic quantities measured in mechanics are _____,_____,and _____.

A) volume, length, meters
B) mass, length, time
C) radioactivity, dose, exposure
D) meters, kilos, seconds

Question 17

What does ALARA mean?

A) All Level Alert Radiation Accident
B) As Low As Reasonably Achievable
C) Always Leave A Restricted Area
D) As Low As Regulations Allow

Question 18

Energy is measured in _____.

A) kilograms
B) joules
C) electron volts
D) B or C

Question 19

Ionizing radiation is capable of removing _____ from atoms as it passes through the matter.

A) neutrons
B) protons
C) electrons
D) ions

Question 20

Ice and steam are examples of two forms of _____.

A) matter
B) radiation
C) energy
D) work