Light Flashcards
Transparent
Easy to see through, clear image
Translucent
Fuzzy image, hard to see since some light reflects and some goes through
Opaque
Can’t see through at all
Transverse waves
Waves that move up and down
Equilibrium
The line in the middle
Frequency
How many waves that passes though in a second
Refraction
The bending of light as it enters another medium with a different density
Longitudinal wave
Wave that moves in the same direction
Law of reflection
Angle of incidence is equal to the angle of reflection
When can total internal reflection happen
Total internal reflection occurs when light travels though a medium that has a low reflective index
Is the angle of incidence always greater than the critical angle?
Yes
How can the angle of refraction be 90°
When the angle of incidence is equal to the critical angle
The higher the frequency
The lower the wavelength
The lower the frequency
The higher the wavelength
Primary colours
Red, Green and Blue
Secondary colours
Magenta, Cyan, Yellow
Red + Blue
Magenta
Blue + Green
Cyan
Red + Green
Yellow
Colour spectrum
Arranges colours in order of wavelength
How many degrees is the normal
It is 90°
Density
The amount of molecules in an area
Refracted ray
The ray which has been bent due to the density of the media
Velocity
The speed of something in a given direction
