Physics

Front 1

energy that exists over a wide range is called

Back 1

continuum

Front 2

smallest quantity of any type of electromagnetic energy

Back 2

photon

Front 3

does visible light have electric and magnetic properties

Back 3

yes ( electromagnetic)

Front 4

do photons have mass

Back 4

no

Front 5

photons are energy disturbances that move through __________

Back 5

space

Front 6

the velocity of all electromagnetic radiation is

Back 6

the speed of light

Front 7

what does the electric field govern

Back 7

interactions of electrostatic charges

Front 8

what does the magnetic field govern

Back 8

magnetic poles

Front 9

variation in wave type is called a what wave

Back 9

sine wave

Front 10

sine waves are variations of what over time

Back 10

amplitude

Front 11

what is one half the range from crest to valley over which the sine wave varies

Back 11

amplitude

Front 12

the rate of rise and fall is

Back 12

frequency (usually identified as cycles per second)

Front 13

what is the unit of measurement for frequency

Back 13

Hertz (Hz)

Hint 13

1 Hertz is equal to one cycle per second

Front 14

the frequency is equal to the number of ______ or the number of ______ that pass the point of an observer per unit of time

Back 14

crests valleys

Front 15

how high or low a sine wave goes is called

Back 15

amplitude

Front 16

the number of wavelengths that pass a point of observation per second is

Back 16

frequency

Front 17

the distance from one crest to another, from one valley to another, from any point on the sine wave to the next corresponding point

Back 17

wave length

Front 18

what is not related to wavelength or frequency

Back 18

amplitude

Front 19

as the ______ is increased, the ______ is reduced

Back 19

frequency, wavelength

Hint 19

Front 20

what are the three wave parameters needed to describe electromagnetic energy

Back 20

velocity, frequency, and wavelength

Front 21

does a change in the velocity, frequency and wavelength affect the values of the other

Back 21

yes ( velocity is constant)

Front 22

at a given velocity, wavelength, and frequency are inversely proportional

Back 22

true

Front 23

what are the three regions most important to radiologic science in the electromagnetic spectrum

Back 23

visible light, xray radiation, radio frequency

Front 24

visible light can be deviated when it passes through one transparent medium to another, this deviation of light is called

Back 24

refraction

Front 25

what occupies the smallest segment of the electromagnetic spectrum

Back 25

visible light (only portion that we can sense directly)

Front 26

sun light contains two types of visible light what types

Back 26

infrared and ultraviolet

Front 27

radio frequency has a relatively _____ energy and relatively _____ wavelength

Back 27

low, long

Front 28

what is the only difference between x and gamma rays

Back 28

their origin

Front 29

these rays are emitted from the electron cloud of an atom and are stimulated artificially

Back 29

x rays

Front 30

come from inside the nucleus of a radioactive atom

Back 30

gamma rays

Front 31

visible light is identified by ______?

Back 31

wavelength

Front 32

radio frequency is identified by _____?

Back 32

frequency

Front 33

xrays are identified by its ______?

Back 33

energy

Front 34

a photon of x radiation and a photon of visible light are fundamentally the same except that x radiation has a much higher _______, and hence a shorter ______, than visible light

Back 34

frequency, wavelength

Front 35

the shorter the photons _____ , the the higher the photons _____

Back 35

wavelength, energy

Front 36

the reduction in intensity that results from scattering and absorption

Back 36

attenuation

Front 37

passage of an xray beam through an anatomical part with no interaction with atomic structures

Back 37

transmission

Front 38

surface that allows light to be transmitted but greatly alters and reduces its intensity

Back 38

translucent

Front 39

surface that allows light to be permitted almost unaltered

Back 39

transparent

Front 40

transfer of energy from an electromagnetic field to matter

Back 40

absorption

Front 41

when light is absorbed the energy deposited reappears as

Back 41

heat

Front 42

what are three degrees of interaction between light and an absorbing material

Back 42

transparency, translucency, and opacity

Front 43

glass is roughened with sand paper, light is still transmitted through the glass but its greatly scattered and reduced in intensity

Back 43

translucent

Front 44

glass is painted black and no light can pass through

Back 44

opaque

Front 45

structures that absorb xrays are called

Back 45

radiopaque

Front 46

structures that transmit xrays are called

Back 46

radiolucent

Front 47

law that states that the intensity of radiation at a location is inversely proportional to the square of its distance from the source of radiation

Back 47

inverse square law

Front 48

matter can neither be created or destroyed what law is this

Back 48

law of conservation of matter

Front 49

energy can neither be created nor destroyed what law is this

Back 49

law of conservation of energy

Front 50

the longer the wavelength of _______ energy. the lower the energy of each _____

Back 50

electromagnetic, photon

Front 51

two glands attached to reach lateral thyroid lobe

Back 51

parathyroid glands

Front 52

located inferior to the thyroid gland

Back 52

thymus

Front 53

which bronchus is wider, shorter, more vertical, more likely to clog from foods particles and foreign objects

Back 53

right primary bronchus

Front 54

which bronchus is smaller in diameter, twice as long, more horizontal,

Back 54

left primary bronchus

Front 55

specific prominence or ridge, where it divides into right and left bronchi

Back 55

Carina

Front 56

how many lobes and bronchus does the right lung have

Back 56

3

Front 57

how many lobes and bronchus does the left lobe have

Back 57

2

Front 58

what is the light spongy highly elastic substance of the lung called

Back 58

parenchyma