Physics Unit 1

Question 1

What are the 3 fundamental particles of the atom

Answer 1

Neutron, electron, and proton

Question 2

What is the max # of electrons permitted in the N-shell

Answer 2

32

Question 3

Which electron shell is located closest to the nucleus

Answer 3

K-shell

Question 4

How many electrons can the L-shell hold

Answer 4

8

Question 5

The number of protons in the atoms nucleus is reflected in its

Answer 5

Atomic #

Question 6

The # of protons and neutrons in the atoms nucleus is the

Answer 6

Atomic mass #

Question 7

T/F The kinetic energy of a body turns into potential energy when the body is put into motion

Answer 7

False

Question 8

T/F Energy cannot be created or destroyed but diverted into other forms of energy is know as the theory of relativity

Answer 8

False

Question 9

Actual or potential ability to do work

Answer 9

Energy

Question 10

Anything that occupies space and has form

Answer 10

Matter

Question 11

Force x distance

Answer 11

Work

Question 12

Energy in motion

Answer 12

Kinetic energy

Question 13

Stored energy

Answer 13

Potential energy

Question 14

Simple substance that cannot be broken down

Answer 14

Element

Question 15

Complex substance made of 2 or more elements that are chemically United

Answer 15

Compound

Question 16

Smallest particle of an element that still possesses the chemical properties of that element

Answer 16

Atom

Question 17

When 2 or more substances are combined

Answer 17

Mixture

Question 18

Energy

Answer 18

Joule

Question 19

Mass

Answer 19

Kilogram

Question 20

Velocity

Answer 20

Speed of light

Question 21

Wavelength

Answer 21

Angstrom

Question 22

Hertz

Answer 22

Frequency

Question 23

When atoms of one element change to atoms of another element because of the loss of a proton is know as

Answer 23

Radioactive decay

Question 24

The process of adding or removing an electron from an atom is known as

Answer 24

Ionization

Question 25

When an atom has the same # of protons but different # of neutrons it is known as

Answer 25

Isotope

Question 26

Elements on the periodic table are listed by their

Answer 26

Atomic #

Question 27

Action of machines and physical movement

Answer 27

Mechanical

Question 28

Result of electric and magnetic disturbances in space

Answer 28

Electromagnetic

Question 29

Energy stored in the nucleus of an atom

Answer 29

Nuclear

Question 30

Results from the movement of electrons

Answer 30

Electrical

Question 31

Results of the motion of atoms and molecules

Answer 31

Heat (thermal)

Question 32

Energy released during a chemical reaction

Answer 32

Chemical

Question 33

What energy is plotted by wavelength and frequency

Answer 33

Electromagnetic

Question 34

Which of the following energies possesses the greatest energy

Answer 34

Gamma rays

Question 35

The behavior known was wave particle duality is described as

Answer 35

Radiation behaving as a wave and a particle at the same time

Question 36

The symbol for wavelength is

Answer 36

Lambda

Question 37

The length of wavelength that is important for diagnostic X-ray is the

Answer 37

Angstrom

Question 38

Cycles per second of a wavelength is measured by

Answer 38

Hertz

Question 39

Which of the following is the constant for electromagnetic radiation

Answer 39

Velocity

Question 40

X and gamma radiation can be described as having

Answer 40

Short wavelength and high frequency

Question 41

Which of the following equations can describe the relationship between photon energy and frequency

Answer 41

E=h y

Question 42

Which of the following is not a true statement concerning x-ray properties

Answer 42

Do not release heat upon passing through matter

Question 43

Which portion of the tube assembly contains a low negative potential

Answer 43

Focusing cup

Question 44

What is formed when electrons leave the surface of the filament

Answer 44

Thermionic cloud

Question 45

Which of the following elements of the anode/cathode assembly is made from thoriated tungsten

Answer 45

Filament

Question 46

This place limits the maximum range of mA, the x-ray tube is capable of producing

Answer 46

Space charge effect

Question 47

What is the term used when no more electrons are available to be boiled off because of the kVp

Answer 47

Saturation current

Question 48

Grid pulsed, grid, biased, or grid controlled tubes are used in all of the following except

Answer 48

Mammography

Question 49

The ___ acts as a thermal conductor within the x-ray tube assembly

Answer 49

Anode

Question 50

What portion is the only part of the tube assembly located outside of the envelope?

Answer 50

Stator

Question 51

Which of the following devices permits electrons to flow from the cathode to the anode, without external forces/interactions?

Answer 51

Vacuum sealed envelope

Question 52

Scatter/leakage radiation is limited to_____/hour

Answer 52

1 mSv

Question 53

Which chart is most important to the technologist?

Answer 53

Tube rating chart

Question 54

Which chart plots, MA, KV, and time

Answer 54

Tube rating chart

Question 55

Which of the following is not a target interaction in the x-ray tube

Answer 55

Coherent

Question 56

Which interaction has the highest incidence of occurrence

Answer 56

Heat

Question 57

Named for slowing or breaking

Answer 57

Brems

Question 58

Occur at KVP levels higher than 70

Answer 58

Characteristic

Question 59

Interacts with the force field of the nucleus

Answer 59

Brems

Question 60

Majority of the diagnostic beam

Answer 60

Brems

Question 61

Create multiple x-ray photons with each interaction

Answer 61

Characteristic

Question 62

Occurs between 80–100 KVP

Answer 62

Brems

Question 63

Increases skin dose

Answer 63

Characteristic

Question 64

During characteristic interaction, which shell is considered diagnostically useful

Answer 64

K

Question 65

At what KEV level is a characteristic peak seen

Answer 65

69 keV

Question 66

During an interaction, the loss of energy becomes a/an

Answer 66

X-ray photon

Question 67

The closer the interaction takes place to the nucleus, the____ the photon energy

Answer 67

Greater