Light p48
The Law of Reflection p49
Refraction of light p 51
Eyes p 55
Colour p59 - 63
100
This is an electrical discharge that emits light waves during a storm.
What is lightening?
100
The same angle that it strikes the mirror.
What is the angle that the light wave bounce off a mirror?
100
Air and water.
What substances are both transparent?
100
The cornea.
What is the place where light enters the eye called?
100
As all of the colours in the leaf are absorbed except green.
What is a leaf green?
200
A vacuum is the easiest way for this to travel.
What is the easiest way for light to travel?
200
The light ray coming towards the surface is called this.
What is the angle of incidence?
200
These do not allow light to pass through them such as paper, wood and bricks.
What are opaque substances?
200
The colored part in front of the eye.
What is the iris?
200
The glass allows the red light to pass through and absorbs all the other colours.
What happens when white light hits a red glass filter?
300
This travels at 300 000 km per second.
What is the speed of light?
300
The angle formed between the rays and the normal are called this.
What is the angle of reflection?
300
This is caused by light bending when it passes through different transparent substances at an angle.
Why does the coin appear to change position in the experiment?
300
Contains structures called vision receptors which detect light.
What is the retina?
300
Two, addition and subtraction.
How many ways are there to make colour?
400
Light is this form of radiation.
What is the form of electromagnetic radiation that allows us to see?
400
The point where the rays that reflect off the mirror meet.
What is the focus point?
400
The type of substance.
What does the amount of refraction of a light ray depend on?
400
Because it is able to change shape to focus near objects and distant objects.
What is the retina better than a glass lens?
400
Because blue light is scattered more by the dust in the atmosphere than red light.
Why is the sky blue?
500
_________ only travel in straight lines.
What is the direction that light travels?
500
Describes a mirror that curves inward like a cave.
What is a concave mirror?
500
A piece of glass or plastic curved on one or both surfaces.
What is a lens?
500
It becomes thinner and flatter.
What is happening to the eye when you focus on distant objects?
500
Because suspensions have solid objects in them and solutions do not.
Why do suspensions scatter light by solutions do not?
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