light

Question 1

electromagnetic wave

Answer 1

traverse
- 2 plains
- no medium needed
- has specific frequency wavelength

Question 2

visible spectrum

Answer 2

portion of the spectrum that the eye can see

Question 3

photon

Answer 3

light particle

Question 4

luminous

Answer 4

objects that releases or give photons

Question 5

non-luminous

Answer 5

not luminous
can only see non-luminous objects because light bounces off it and into the eyes

Question 6

regular reflection

Answer 6

light reflects off smooth surface and gives a clear sharp image

Question 7

laws of reflection

Answer 7

incoming ray bounces off mirror at the same angle

Question 8

diffuse reflection

Answer 8

light reflects off rough surface and scatters not forming an image

Question 9

incident ray

Answer 9

incoming ray

Question 10

reflected ray

Answer 10

ray that bounces off mirror

Question 11

flat mirror

Answer 11

plane mirror

Question 12

Total internal reflection

Answer 12

when light angle is greater than the critical angles, light reflects internally

Question 13

Refraction

Answer 13

change in direction of light when entering a transparent object

Question 14

light speed changes

Answer 14

changes light direction

Question 15

speed of light when particles more tightly packed together

Answer 15

longer to travel through

Question 16

refractive index

Answer 16

lights speed through substances

Question 17

higher refractive index

Answer 17

slower travel time

Question 18

what happens when an angle is formed in a substance with low R.I

Answer 18

ray bends away from normal

Question 19

what happens when an angle is formed in a substance with a higher ri

Answer 19

ray bends towards normal

Question 20

Depth illusion

Answer 20

light enters object and looks closer than it is

Question 21

Lenses

Answer 21

transparent glass shaped in or out

Question 22

convex lens

Answer 22

bulge outwards
rays converge
image is enlarged

Question 23

concave lens

Answer 23

bulge inwards (’cave’)
rays diverge
images are smaller

Question 24

Electromagnetic radiation

Answer 24

an electric and magnetic disturbance traveling through space at the speed of light

Question 25

transmission - light

Answer 25

when a wave travels through a medium or into a new medium

Question 26

reflection - light

Answer 26

the ray of light bouncing off something (usually a mirror)

Question 27

absorption - light

Answer 27

energy of a wave being transferred to the matter in which it travels through

Question 28

ray

Answer 28

a line of light

Question 29

opaque

Answer 29

no light can pass through

Question 30

transparent

Answer 30

light can pass through

Question 31

translucent

Answer 31

allow light to pass through but isn't clear on the other side

Question 32

normal

Answer 32

invisible line perpendicular to the reflecting surface

Question 33

angle of incidence

Answer 33

angle from the incident ray to the normal

Question 34

angle of reflection

Answer 34

angle from the reflected ray to the normal

Question 35

lateral inversion

Answer 35

inversion horizontally

Question 35

visual image

Answer 35

image that is not actually there but seems to be like the image in a mirror

Question 36

angle of refraction

Answer 36

angle of the refracted ray to refracting surface

Question 36

refracted ray

Answer 36

ray that is refracted (inside object)

Question 37

emergent ray

Answer 37

ray coming out of an object (that has refracted the light going through it)