Electromagnetic radiation

Question 1

what is a wave length

Answer 1

the distance form any point in a wave to the same point in the next wave (cycle)

Question 2

how is wave length represented

Answer 2

Lambda ^

Question 3

what are the 2 waveforms used

Answer 3

electromagnetic radiation & electrical current

Question 4

for electromagnetic radiation… the x axis is always what

Answer 4

DISTANCE ( M, Mm, NM) not TIME

Question 5

for electromagnetic radiation…..the Y & Z axis is what

Answer 5

electrical & magnetic fields

Question 6

for electrical current… the x axis is always what

Answer 6

TIME (sec, min, mili sec)

Question 7

for electrical current…the y axis is what

Answer 7

being measured (volts)

Question 8

what is amplitude

Answer 8

peak intensity on the Y axis (highest voltage, Greatest force)

Question 9

what is frequency

Answer 9

the number of waves per second (function/variable)

Question 10

what is frequency measured in?

Answer 10

Hertz (Hz) or cycles per second (c/s)

Question 11

what is the relationship between frequency & wavelength

Answer 11

as wavelength decreases, frequency increases

inverse relationship

Question 12

does amplitude have a relationship with frequency and wavelength

Answer 12

No

Question 13

what are the characteristics of the electromagnetic specturm

Answer 13

no mass- non particulate
no charge
travel in waves
travel @same speed (velocity)

Question 14

In order from LOW energy to HIGH energy, list the members of the magnetic spectrum

Answer 14

Radio waves
microwaves
Infrared radiation
ultraviolet (UV)
x-rays
Gamma rays

Question 15

Describe x ray frequency and wavelength

Answer 15

High frequency
short wavelength

Question 16

why is it called electro magnetic radiation

Answer 16

EMR exist in BOTH electric and magnetic fields

Question 17

what are properties of EMR described as

Answer 17

waves of energy
bundles of energy

Question 18

EMR travels as a bundle of energy called what

Answer 18

Photons

Question 19

what is wave-particle duality

Answer 19

the co-existence of EMR waves & photons

Question 20

why is it called a spectrum

Answer 20

no gaps between energy
no gaps within each region

Question 21

All EMR travels at the same what

Answer 21

velocity (speed)

Question 22

what does velocity (C) equal

Answer 22

3x10^8
186,000 miles/second

Question 23

what is the wave equation

Answer 23

velocity (C) = frequency x wavelength (^)

Question 24

what kind of relationship does frequency & energy have

Answer 24

directly proportional

Question 25

what is the energy equation

Answer 25

energy = planck’s constant x frequency

Question 26

when you adjust energy what are you adjusting

Answer 26

kVp
changing frequency & wavelength

Question 27

what EMR are non ionizing radiation?

Answer 27

radio waves
micro waves
infrared
visible light

Question 28

what EMR are ionizing

Answer 28

Ultra violet
x rays
gamma rays