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Light Facts
Sources of Light
Reflection
Refraction
Random
100
A form of energy that we can see.
What is Light?
100
This source of light come from heating an object up until it produces light.
What is an Incandescent source.
100
The process by which light strikes a surface and bounces off that surface is called?
What is Reflection?
100
The change in speed of light as it enters a new medium produces this occurrence.
What is Refraction?
100

The unit used to measure electrical energy.

What is Kilowatt.

200
A type of mirror used in city buses to keep an eye on the passengers.
What is a Convex mirror.
200
This source of light comes from the reaction between chemicals in a man-made device.
What is Chemiluminescence.
200
In order for an image to appear on a surface, the surface must be what?
What is smooth.
200
When light enters a more dense medium it will bend towards or away from the normal line?
What is Towards.
200

Adjusts how much light enters the eye/camera

What is iris and diaphragm

300
A diagram showing how light interacts with its surroundings.
What is a Ray Model.
300
This source of light comes from chemical reactions that occur within a living organism.
What is Bioluminescence.
300
The Law of Reflection states that these two things are equal.
What are the Angle of Reflection and the Angle of Incidence.
300
When light enters a less dense medium will it bend towards or away from the normal line?
What is Away.
300

Captures the image in both eye and camera 

What is retina and film

400
The production of shadows tells us that light does what?
What is travels straight.
400
This source of light comes from the use of electricity transferring through mercury vapour. The mercury vapour releases ultraviolet light which is absorbed by a phosphor coating which then releases visible light.
What is Fluorescence.
400
In a ray diagram the light ray that hits the surface of an object.
What is the Incident Ray.
400

When light enters a new medium this change causes the light to bend 

What is the speed of the light slowing down.

400

Automatic adjustment of pupil size to control the amount of light entering the eye 

What is the Iris Reflex 

500
The classification for the sun and fire.
What are Natural Light Sources.
500
This source of light occurs when particles are able to absorb the energy from a light source and release it at a later time.
What is Phosphorescence.
500
The imaginary line that extends up 90 degrees from the surface of an object.
What is the Normal Line?
500

When light hits warm air it is refracted into a curved path. The light from a distant object is refracted causing 

What is a mirage

500

The natural changing of the shape of the lens to adjust focus on images 

Accommodation