waves
This is the part of a longitudinal wave where the particles are spread further apart.
What is a rarefaction
Along with the direction the wave is traveling, "this" also changes when a wave refracts.
What is the speed of the wave
This type of wave has the shortest wavelength of all electromagnetic waves
What is a gamma ray
This is the unit we use to measure frequency
What is hertz
What property of a wave is directly connected with how much energy the wave is carrying?
The amplitude.
This type of electromagnetic wave has the longest wavelength in the spectrum.
What is radiowave
The longest wavelength of visible light.
What is RED