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Characteristics of light
How we see colour
Mirrors
Refraction
100
What does light travel in?
Waves
100
When all the light waves bounce off an object, what colour will the object be?
White
100
What does a mirror do to light?
it reflects light
100
What does refraction do to light?
it bends light
200
Whats the diffrence between Luminous and Non-Luminous?
luminous objects emit light non-luminous objects do not emit light but do reflect light
200
The three colours in the additive colour model
Red, Blue, green
200
Is a mirror transparent or opaque?
opaque because light bounces off it and does not go through it.
200
water, air, glass. order these from where light travels fastest to slowest
Air water glass
300
Name five light sources
Bioluminescence chemiluminescence Flouresence Phospheresence Incandesence
300
How does the eye see colours?
All the colours shine on an object, the object absorbs all the colours light rays except those the same colour as the surface of the object, it reflects those light rays to the eyes.
300
Name the methods for showing how a mirror reflects light
Ray method Normal method
300
What makes light refract?
when it hits a tranprent object that makes the light either slow down or peed up th light will bend slightly
400
What is the speed of light?
3 x 10(8) m/sec
400
What parts of the eye allow us to see colour?
the retina, and the rods and cones inside of the retina
400
What happens to to the image in a concave mirror when you move the object from behind the focal point to in front of it?
it gets bigger it goes from upside down to upright it goes from infront to behind it goes from real to virtual