2Q: electromagnetic waves

Question 1

is believed to have a dual nature.

Answer 1

light

Question 2

the dual natures.

Answer 2

particle and wave

Question 3

as a _____, light carries it bundles of energy called photons

Answer 3

particle

Question 4

bundles of energy

Answer 4

photons

Question 5

_________ is produced when photons travel and interact with electric fields.

Answer 5

electromagnetic radiation

Question 6

properties shiz:

Answer 6

reflection, refraction, interference, diffraction, polarization

Question 7

key word: bounces

Answer 7

reflection

Question 8

key word: bends

Answer 8

refraction

Question 9

keyword: separation

Answer 9

diffraction

Question 10

keyword: thin

Answer 10

polarizataion

Question 11

are transverse oscillating waves composed of electric and magnetic waves.

Answer 11

electromagnetic waves

Question 12

speed of em waves when they travel in a vacuum

Answer 12

3.0 x 10 8 m/s

Question 13

shows the different types of em waves

Answer 13

em spectrum

Question 14

order of em spectrum

Answer 14

radio, microwaves, infrared, visible, ultraviolet, x-ray, gamma rays

Question 15

have the longest wavelength and the lowest frequencies

Answer 15

radio waves

Question 16

have a frequency higher than those of radio waves.
examples include wifi and bluetooth

Answer 16

microwaves

Question 17

frequency range of microwaves

Answer 17

300MHz to 300 GHz

Question 18

sub bands of microwaves

Answer 18

L, S, C, X, and K

Question 19

types of microwaves that are used for GPS

Answer 19

L

Question 20

RADAR meaning

Answer 20

radio detection and ranging

Question 21

-are found between microwaves and visible light.
-invisible to the naked eye but can be detected in the form of heat.

Answer 21

infrared

Question 22

in this year, who first recorded the thermal measurement at the far end of the red spectrum, hence the name infrared.

Answer 22

1800, William Herschel

Question 23

infrared came from the prefix infra meaning ____

Answer 23

below

Question 24

it is the only part of the em spectrum that can be seen by the unaided eye.

Answer 24

visible light

Question 25

colors of the frickin' rainbow XDDDDD

Answer 25

red, orange, yellow, green, blue, indigo, violet

Question 26

it is when visible light is emitted, **certain patterns of dark lines and colors appear**; which help in identifying the structure and composition of substances etc etc katamad magtype

Answer 26

spectral signatures

Question 27

in ____, this scientist successfully proved the existence of energy beyond the violet spectra of the visibe light, naming it uv

Answer 27

1801, John River

Question 28

extends from the violet spectra of the visible light through x-rays

Answer 28

ultraviolet

Question 29

uv wavelength

Answer 29

10-400nm

Question 30

least harmful uv

Answer 30

uva

Question 31

uv that causes sunburn because of the chemical reaction to the skin

Answer 31

uvb

Question 32

most harmful but absorbed by the ozone layer

Answer 32

uvc

Question 33

xrays were first observed and documented by ______ in ____

Answer 33

Wilhelm Conrad Roentgen, 1895

Question 34

their wavelengths are small which are why the energies carried in this and gamma rays are described in ____

Answer 34

x-ray, electron volts

Question 35

xrays carry _______

Answer 35

100eV to 200keV

Question 36

xrays are classified to

Answer 36

soft x-rays and hard x-rays

Question 37

____ carry smaller amounts of energy (x-rays) this energy allows them to penetrate through matter

Answer 37

soft x-rays

Question 38

are found in the **end of the spectrum**, meaning they contain the **highest energy of all**

Answer 38

gamma ray

Question 39

range of gamma rays

Answer 39

200 keV to 200 meV

Question 40

natural causes of gamma rays

Answer 40

pulsars, supernova explosions, neutrons stars, and decay of radioactive elements

Question 41

what are the uses of gamma rays

Answer 41

treating cancer cells