wave
a pattern that describes how energy is carried down from one place to another
medium
the material which mechanical waves can travel through, can be solid, liquid, or gas
absorb
to take in
amplitude
the maximum height of a wave from the rest position
frequency
the number of complete wavelengths that pass a certain point in a particular amount of time.
light
a type of wave that does not require a medium to pass through.
wavelength
the distance from 1 peak of a wave to another
spectrum
a continuous range of something in the case of light it is a continuous range of wavelengths.