definitions - waves Flashcards
absorb
taken into a material
brain
organ in human that processes signals from receptors
continuous
variable that has values that can be any number
emit
to give out
filter
piece of material that allows some radiation (colours) through but absorbs the rest
frequency
number of complete waves or vibrations produced in one second (hertz)
inverted
upside down
medium
material that affect light or sound by slowing it down or transferring the wave
luminous
gives out light
light time
distance measured in terms of how far light travels in a given time
non luminous
produces no light
plane
mirror with flat reflective surface
reflect
bounce off
source
emit/give out light or sound
transmit
light or other radiation passes through an object