energy transfer through waves
CRESTS are the highest point of a wave. TROUGHS are the lowest point of the wave. AMPLITUDE is the maximums displacement. WAVELENGTH is the distance between two successive crests or two successive troughs its SI unit is the metre
ELECTROMAGNETIC WAVES the light help us to see is a type of electromagnetic wave
wave motion
visible light
ultraviolet
infrared
x-ray
microwave
gamma ray
radio waves
radio broad
mobile communication
remote control unit
optical fibre
optical fibre
bone inspection
radiation therapy
no transfer of matter
energy transfer
a vibrating source