The classification of electromagnetic waves, arranged from lowest energy to highest energy (including visible light).
What is the electromagnetic spectrum?
100
This colour of light is made up of all other colours of the spectrum.
What is white light?
100
This type of mirror is not curved.
What is a plane mirror?
100
The bending of light as it enters a different medium at an angle.
What is refraction?
100
A lens that refracts parallel light rays so that they move apart. This lens is thinner in the middle than at the edges.
What is a diverging lens?
200
The waves of the electromagnetic spectrum that we can see.
What is visible light?
200
These are the primary colours of light (and are also the 3 colours of our cones in our retina).
What are red, green, and blue?
200
The attitude of an image in a plane mirror.
What is upright?
200
Light will be bent this way when it goes from a more dense to a less dense medium.
What is away from the normal?
200
Point where light rays parallel to the principal axis converge.
What is the focus (focal point)?
300
These are the highest frequency waves on the electromagnetic spectrum.
What are gamma rays?
300
This is the colour that a blue object would appear if placed under a red light.
What is black?
300
A construction line drawn perpindicular to the surface of a mirror.
What is the normal?
300
This occurs when light hits a boundary from a more dense to less dense medium at an angle beyond the critical angle.
What is total internal reflection?
300
A ray that travels in this manner with respect to the principal axis will refract through the principal focus on a converging lens.
What is parallel?
400
These lower frequency waves have longer wavelengths and allow us to get weather reports in the morning through a receiver and speaker.
What are radio waves?
400
We get this colour when we mix blue pigment with yellow pigment.
What is green?
400
This mirror will create a virtual, upright image when an object is placed inside its focal length.
What is a converging (or concave) mirror?
400
This is the angle of incidence that gives a 90 degree angle of refraction.
What is the critical angle?
400
This type of lens is required for someone who is nearsighted in order to move the image distance farther away (to form the image exactly on the retina).
What is a diverging lens?
500
These high frequency waves have enough energy to allow us to "see" through skin. They have been very important to the medical industry.
What are X-rays?
500
Blue light added to green light will make this colour.
What is cyan?
500
This mirror cannot be used to create a real image.
What is a diverging (convex) mirror?
500
Water has a value of 1.33 for this.
What is an index of refraction?
500
An object placed at this location will not form a clear real or virtual image since the refracted rays will be parallel to each other.