Characteristics of Light
Law of Reflection & Mirrors
Refraction
Lenses
How We See Colour
100
Name the subtractive primary colours:
What is magenta, cyan and yellow
100
What is the angle between the reflected ray and the normal?
What is the angle of reflection.
100
What is the acronym that is used to solve a refraction problem?
What is "Grass"
100
Is it true that light can travel through the lens from either side?
What is yes
100
What concept is used in order to understand how do we see colour?
We use the additive and subtractive colours to see how they overlap and interact with the other colours.
200
Define incandescent light:
What is light that is given off by objects when they become very hot.
200
A light ray that travels as though it were going toward the focal point will reflect back parallel to the principle axis, what is this an example of?
What is Ray diagram for convex mirrors.
200
The more light rays slow down...
What is the more the light gets bent.
200
What do convex lenses cause light rays to do?
What is come together.
200
Why do we see a pepper as the colour red?
Because all of the additive colours are being absorbed so only red is shown.
300
What are all the labels of a wavelength?
What is Transverse axis, crest, through, amplitude and wavelength.
300
Explain total internal reflection:
What is no light can escape the medium because the angle of incidence is greater than the critical angle.
300
What does the law of reflection relate?
What is the angle of incidence, the angle of refraction and the refractive indices.
300
How is refraction different from reflection?
What is because the light rays have to pass through 2 mediums
300
Explain the electromagnetic spectrum:
What is the concept of the electromagnetic waves caused by energy. Certain waves are placed to a specific real-life thing.
400
How do we see white light?
What is An object will emit all light energy and all colours overlap and only white light is shown.
400
What do concave and convex mirrors do?
What is concave mirrors cause light rays to converge and convex mirrors cause light rays to diverge.
400
What is dispersion?
What is when colours get separated by refraction.
400
Describe the difference between a concave lens and convex lens:
What is in a concave lens, it makes the light rays move apart and a convex lens makes light rays come together.
400
Explain the relationship between the additive and subtractive colours:
What is the additive colours are the subtractive secondary colours and vies versa.
M
e
n
u