Light
Light that is given off by something because it is very hot is called:
Incandescent light
When light bounces off an object, this is called:
Reflection
The three primary colours are:
Red, blue, green
What is the normal of a mirror?
Line drawn at 90° from the point of incidence at the mirror
How are tertiary colours produced?
By mixing a primary and secondary colour together
When looking at a wavelength, the very top of the wave is called the:
Crest
When light remains in an object and is converted into heat, this is called:
Absorption
How is white light formed?
By combining all the primary colours together
What is an angle of incidence?
The angle between the normal and the incident ray
What are 3 common uses for lasers?
Manufacturing, surveying, medical equipment
The two observable properties of light are:
Light travels at high speed, and light travels in a straight line
When light travels through an object and continues, this is called:
Transmission
The three secondary colours are:
Yellow, cyan, magenta
What is an angle of reflection?
The angle between the reflected ray and the normal
Name one property of lasers
Waves travel in the same direction, or waves are in unison
The type of luminescent light that is given off by living creatures is called:
Bioluminescence
When light is scattered through an object to create a blurry image, this is because the object is:
Translucent
What secondary colour is produced when red and green are mixed?
Yellow
What is the point of incidence?
The spot where the incident ray strikes the reflecting surface
If a shower curtain lets light through, but the light is scattered, what term would we use to describe it?
Translucent
On the far right side of the light spectrum, which length and energy does light have?
Long waves, low energy
If a ball is red, what colour of light is being absorbed by the ball?
Everything except for red
In order to create black light, what colours do we mix?
Yellow, cyan, magenta (the secondary colours)
If an incident ray is hitting a mirror at 37°, then what angle is the reflected ray leaving the mirror at?
37°
What size wavelengths does the visible spectrum exist between?
400 and 700 nanometers