Physics Test: Electromagnetic Waves

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Electromagnetic waves

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Physics

36 Terms

1

Electromagnetic waves

a wave that is partly magnetic and partly electric

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2

Radio

Largest electromagnetic waves (size of buildings-humans)

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3

Microwave

Second largest electromagnetic waves (size of honey bee)

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4

Infrared

Third largest electromagnetic wave (size of a pinpoint)

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5

Visible light

Middle of the electromagnetic spectrum (roygbiv)

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6

Ultraviolet

Third smallest electromagnetic wave (size of molecules)

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7

X-ray

Second smallest electromagnetic wave (size of atoms)

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8

Gamma ray

Smallest electromagnetic wave (size of atomic nuclei)

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9

Radiation

emitting electromagnetic waves

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10

low

Radio waves have high or low frequency?

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11

high

Gamma ray waves have high or low frequency

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12

3 x 10^8 m/s

What is the speed of light?

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13

700 nm - 400 nm

Range of visible light? (nanometers)

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14

white

our eyes interpretation of every color wave at once

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15

black

no light waves, everything is absorbed

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16

red, green, blue

three primary colors

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17

yellow, cyan, magenta

three secondary colors

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18

Cornea

part of eye that lets light through, protective layer

<p>part of eye that lets light through, protective layer</p>
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19

lens

part of eye that focuses the image

<p>part of eye that focuses the image</p>
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20

retina

part of the eye that the image is focused on, contains rods and cones

<p>part of the eye that the image is focused on, contains rods and cones</p>
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21

optic nerve

bundle of nerves that connects to the brain

<p>bundle of nerves that connects to the brain</p>
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22

rods

cells on outside of retina that see bright and dark

<p>cells on outside of retina that see bright and dark</p>
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23

cones

cells on the center of the retina that react to colors, three types (red green, blue)

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24

color-blindness

missing or damaged cones leads to...

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25

yellow

Red-high, Green-high, B- none

<p>Red-high, Green-high, B- none</p>
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26

cyan

Red-low, Green-mid, Blue-mid

<p>Red-low, Green-mid, Blue-mid</p>
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27

Reflection

light hits a surfaces and bounces off, the incident ray and second ray have the same angle

<p>light hits a surfaces and bounces off, the incident ray and second ray have the same angle</p>
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28

Refraction

the medium changes so the direction of the wave changes, light "curves"

<p>the medium changes so the direction of the wave changes, light &quot;curves&quot;</p>
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29

Diffraction

bending of waves around small obstacles and the spreading out of waves past small openings

<p>bending of waves around small obstacles and the spreading out of waves past small openings</p>
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30

Polarization

reflection of light of non-metallic surfaces, results in removal of light waves that aren't a certain direction

<p>reflection of light of non-metallic surfaces, results in removal of light waves that aren&apos;t a certain direction</p>
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31

Blind spot

The optic nerve in your retina causes a...

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32

medium

the substance waves are traveling through

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33

Spectrum

range of things

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34

Velocity = frequency x wavelength

Speed of a wave formula

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35

because blue waves are small but our eye picks them up more than violet waves.

Why is sky blue and not violet?

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36

color combinations

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