Chapter 2 & 3 Test

Question 1

An ion pair is:

a.) an electron that has been knocked out of orbit
b.) an atom and the electron that was removed
c.) an electron
d.) an atom with more electrons than neutrons

Answer 1

b.) an atom and the electron that was removed

Question 2

All of the electromagnetic radiations are capable of ionizing matter.

a.) true
b.) false

Answer 2

b.) false

Question 3

Amplitude is defined as:

a.) the maximum height of a wave
b.) the distance between the peak of 1 wave to the peak of the next wave
c.) the speed of a wave
d.) the number of waves passing a given point each second

Answer 3

a.) the maximum height of a wave

Question 4

As a waves wavelength decreases, its frequency:

a.) decreases
b.) it depends on the type of EMR
c.) stays the same
d.) increases

Answer 4

d.) increases

Question 5

During a fluoroscopy procedure the tech stands at 3 feet from the xray tube for 1 hour and acquires an equivalent dose of 0.2 msv. How much dose would the tech have received had they stood 6 feet from the tube for 45 minutes?

Answer 5

0.04 msv

Question 6

Electromagnetic energy cannot travel through a vaccuum.

a.) true
b.) false

Answer 6

b.) false

Question 7

Electromagnetic energy is:

a.) a form of energy that exists as an electric and magnetic disturbance in space
b.) a form of chemical energy
c.) a form of energy that exists as stored energy inside a tube
d.) exists due to atomic and molecular motion

Answer 7

a.) a form of energy that exists an as electric and magnetic disturbance in space

Question 8

Electromagnetic, chemical, electrical and thermal are all types of:

a.) waves
b.) ionizing radiation
c.) non ionizing radiation
d.) energy

Answer 8

d.) energy

Question 9

Energy in a stored state is:

a.) energy in motion
b.) potential energy
c.) power
d.) kinetic energy

Answer 9

b.) potential energy

Question 10

For the chemical element (22/11 Na), the atomic mass number is:

a.) 33
b.) 22
c.) 11
d.) none of the above

Answer 10

b.) 22

Question 11

Frequency is typically measured in:

a.) meters
b.) centimeters
c.) feet
d.) hertz

Answer 11

d.) hertz

Question 12

How many neutrons does 7/3 Li (lithium) have?

a.) 10
b.) 4
c.) 7

Answer 12

b.) 4

Question 13

How many nucleons does (131/53 I) have?

a.) 53
b.) 131
c.) 184
d.) 78

Answer 13

b.) 131

Question 14

If an xray beam has an intensity of 1.2 mgy at a distance of 1.2 mgy at a distance of 38’’, what will the intensity be at a 72’’ SID?

a.) .33
b.) 4.3
c.) .67
d.) .033

Answer 14

a.) .33

Question 15

Like charges ________ and unlike charge ____________.

a.) repel, repel
b.) attract, repel
c.) repel, attract
d.) attract, repel

Answer 15

c.) repel, attract

Question 16

Radiation emittef from a standard radio broadcast antenna:

a.) has relatively high energy
b.) is electromagnetic radiation
c.) has a higher frequency than microwaves
d.) is sound

Answer 16

b.) is electromagnetic radiation

Question 17

The N shell can hold ________ electrons.

a.) 8
b.) 4
c.) 64
d.) 32

Answer 17

d.) 32

Question 18

The atomic number:

a.) is the number of protons plus neutrons
b.) has the symbol n
c.) has the symbol k
d.) is the number of protons

Answer 18

d.) is the number of protons

Question 19

The electron shell closest to the nucleus is lettered:

a.) k
b.) h
c.) l

Answer 19

a.) k

Question 20

Wavelength is defined as:

a.) the speed of a wave
b.) the distance between the peak of 1 wave to the peak of the next wave
c.) the number of waves passing a given point each second
d.) the maximim height of a wave

Answer 20

b.) the distance between the peak of 1 wave to the peak of the next wave

Question 21

When the bond between two atoms is due to their sharing an outer shell electron, this is called a:

a.) molecular bond
b.) ionic bond
c.) covalent bond
d.) compounding bond

Answer 21

c.) covalent bond

Question 22

Which of the following members of the electromagnetic spectrum have the highest velocity?

a.) xrays and gamma rays
b.) radiowaves
c.) microwaves
d.) they all have equal velocity

Answer 22

d.) they all have equal velocity

Question 23

Alpha and beta particles have the ability to ionize matter.

a.) true
b.) false

Answer 23

a.) true

Question 24

Alpha and Beta particles are similar to xrays and gamma rays in that they

a.) have the ability to ionize matter
b.) have characteristics of wavelength and frequency
c.) have no mass
d.) are part of the electromagnetic spectrum

Answer 24

a.) have the ability to ionize matter

Question 25

Electromagnetic radiation:

a.) has mass that increases with increasing velocty
b.) has energy represented by amplitude
c.) exits at zero velocity
d.) exists only if its velocity is 3x10^8

Answer 25

d.) exists only if its velocity is 3x10^8

Question 26

In the formula E= hf, h represents

a.) frequency
b.) electricity
c.) energy
d.) plancks constant

Answer 26

d.) plancks constant

Question 27

In the formula E= hf, E represents

a.) energy
b.) plancks constant
c.) frequency
d.) electricity

Answer 27

a.) energy

Question 28

Photons with the highest frequencies have the __________

a.) longest wavelengths
b.) highest velocity
c.) shortest wavelengths

Answer 28

c.) shortest wavelengths

Question 29

A tech is about to perform a transthoracic shoulder exam. They decide on using 80 kvp and 35 mas
but wants to set a breathing techniqu of 2 seconds but the system showstime in milliseconds. what would be the appropriate ma and ms the tech would set?

Answer 29

17.5 ma and 2000 ms

Question 30

Which of the following statements about beta particles are true?
a.) beta particles are larger and more ionizing than alpha particles
b.) beta particles are created from unstable atoms
c.) beta particles are very similar to xrays
d.) beta particles are smaller and lighter than alpha particles

a.) a, b and c only
b.) c and d only
c.) a and c only
d.) b, c and d only

Answer 30

d.) b, c and d only

Question 31

There are two types of atomic interactions that occur within the xray tube to produce xrays. Which type occurs from knocking an electron out of orbit?

a.) covalent bonding
b.) bremmstrahlung
c.) characteristic
d.) non ionizing energy

Answer 31

c.) characteristic

Question 32

When compared to visible light, xrays have greater:

a.) wavelength
b.) velocity
c.) frequency
d.) charge

Answer 32

c.) frequency

Question 33

Which of the following is considered a nucleon?

a.) alpa particle
b.) proton
c.) beta particle
d.) electron

Answer 33

b.) proton

Question 34

Who is accredited with discovering radium, or radioactivity?

a.) marie and pierre curie
b.) dmitri mendeleev
c.) john dalton
d.) henry winker

Answer 34

a.) marie and pierre curie

Question 35

Who is attributed to organizing known elements into the periodic table?

a.) dmitri mendeleev
b.) john dalton
c.) jj thomson
d.) ernest rutherford

Answer 35

a.) dmitri medeleev

Question 36

Photns with the highest frequencies have the __________

a.) longest wavelengths
b.) highest velocty
c.) lowest energy
d.) shortest wavelengths

Answer 36

d.) shortest wavelengths

Question 37

The inverse square law relates intensity of lights/xrays to:

a.) velocity
b.) time
c.) distance
d.) mass

Answer 37

c.) distance

Question 38

Which member of the electromagnetic spectrum has the longest wavelength?

a.) visible light
b.) radiowaves
c.) xrays
d.) microwaves

Answer 38

b.) radiowaves

Question 39

Which of the following members of the elctromagnetic spectrum has the ability to ionize matter?
a.) radiowaves
b.) xrays
c.) microwaves
d.) ulntraviolet light

a.) b only
b.) b and d
c.) a b c and d
d.) d only

Answer 39

a.) b only

Question 40

Which of the following originate from an unstable nucleus?
1.) alpha particles
b.) beta particles
c.) xrays
d.) gamma rays

a.) a and b only
b.) c and d only
c.) a, b, c, and d
d.) a, b and d only

Answer 40

d.) a, b and d only

Question 41

Which of the following statements about beta particles are true?
a.) beta particles are larger and more ionizing than alpha particles
b.) beta particles are created from unstable atoms
c.) beta particles are cery similar to xrays
d.) beta particles are similar and lighter than alpha particles

a.) a and c
b.) c and d
c.) b, c and d
d.) a, b and c

Answer 41

c.) b, c and d

Question 42

xrays and gamma rays differ in:

a.) the effect they have on matter
b.) all of teh above
c.) the enrgy source that produces them
d.) their energy level

Answer 42

c.) the energy source that produces them

Question 43

Radiation with suffiecient energy to detach an electron from an atom describes:

a.) ion pair
b.) ionizing radiation
c.) electromagnetic radiation
d.) radiation therapy

Answer 43

b.) ionizing radiation

Question 44

The negative electrode of the xray tube is the:

a.) canode
b.) anode
c.) diode
d.) cathode

Answer 44

d.) cathode

Question 45

An atom in a normal state has an electrical charge of_________

a.) positive
b.) one
c.) negative
d.) zero

Answer 45

d.) zero

Question 46

Atoms with a different number of protons but the same combined number of protons and neutrons are:

a.) isotopes
b.) isomers
c.) isobars
d.) isotones

Answer 46

c.) isobars

Question 47

In a neutral atom, the atomic number indicates the number of:

a.) protons and electrons
b.) protons
c.) neutrons
d.) electrons
e.) protons and neutrons

Answer 47

e.) protons and neutrons

Question 48

The component of the nucleus that has mass but no electrical charge is the:

a.) none of the above
b.) neutron
c.) electron
d.) proton

Answer 48

b.) neutron

Question 49

If a particle strikes a nucleus with the same amount of enrgy as the atoms nuclear binding energy:

a.) it can split the atom
b.) the atom will become a negative atom
c.) the atom will become a positive atom
d.) it can fuse the atom

Answer 49

a.) it can split the atom

Question 50

The component of the nucleus that has a positve charge and mass is the:

a.) proton
b.) electron
c.) none of the above
d.) neutron

Answer 50

a.) proton

Question 51

The fundamental component of the atom that has the smallest mass is the:

a.) nucleus
b.) neutron
c.) proton
d.) electron

Answer 51

d.) electron