Deck 1: Essential Concepts of Radiologic Science

Question 1

Matter is measured in ___________.

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

Answer 1

kilograms

Question 2

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

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

Answer 2

safe

Question 3

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

Answer 3

20-90

Question 4

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

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

Question 5

The energy of x-rays is ___________.

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

Question 6

A moving object has ____________ energy.

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

Question 7

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 8

___________ is a special quantity of radiologic science.

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

Question 9

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 10

Ice and steam are examples of two forms of ___________.

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

Question 11

Energy is measured in ___________.

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

Question 12

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 13

Exposure is measured in units of ___________.

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

Question 14

Atoms and molecules are the fundamental building blocks of ___________.

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

Question 15

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

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

Question 16

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 17

Computed tomography was developed in the ________.

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

Question 18

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

A) Ionization
B) Pair production
C) Irradiation
D) Electricity

Question 19

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 20

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

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