refraction
lenses
mirrors
how we see colour
characteristics of light
100
true or false: light bends away from the medium when it goes form air to water
false, light bends towards the medium
100
true or false: eyeglasses correct your vision on a long term basis
false, eyeglassesnever correct your vision, they only help with your vision
100
true or false: mirrors are different compared to a lense
true
100
true or false: green is a additive primary colour
true
100
what does light do when it thorught a media A) always bend B) bends and goes striaght C) always striaght
A) always bend
200
the change in direction of light crosses a what between a ________ between two media
what is a boundary
200
were can we find the lense part of the eyeball
we find the lense at the front of the eyeball
200
there are two types of mirrors, name them
- concave - convex
200
what is the result of when you add all the complementary colours together
you get the shade white
200
how many types of light are there
there are 7 types of light
300
what is the angle of refraction
the angle of refraction is the angle between the refracted ray and the normal
300
what is a deffinition of a lense
lense are thick pecies of glass or plastic that have at least one curved side
300
What is a convex mirror
A convex mirror is when the light is reflected towards the source of light
300
what are the three additive and subtractive colours
additive=red,green,blue subtractive=cyan,magenta,yellow
300
what are the 7 types of light
- incandescent - halogen - fluorescent - compact fluorescent - high-intensity discharge - low-pressure sodium - LED
400
the ray after crossing a boundary between two media, what is this
refracted ray of light
400
concave lenses and convex lenses are different, how are they different
concave lenses are thin in the middle while a convex lense are thick in the middle
400
what is a concave mirror
A concave mirror has a reflected surface witch difrects light away form the light
400
name all 12 colours in the colour wheel
- yellow-green - green - turqouise - cyan - coblat - blue - violet - crimson - red - magenta - orange - yellow
400
who invented the first lightblub clue: ( it was not thomas edison)
joesph swan in 1879
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