Crest Pls help this took along time to type ;-;
Frequency 10 pnts
Mechanical
Infrared
Trough
Transverse
Radio
Gamma
Wavelength
Longitudinal
Ultraviolet
X-Rays
Visible Light
Amplitude Electromagnetic
1.________Waves are used to penetrate solids and are used in doctors offices and as airports.
2._________ is the distance between one point of a wave to the same point in the next wave.
3.________is the number of waves per unit of time.
4.________waves occur when motion of the medium is parallel to the direction of the wave.