waves

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waves

a waves is a vibration or oscillation that travels through space and transfers energy

what does wave motion do?

wave motion transfers energy from one point to another but it does not transfer matter

types of waves

mechanical waves and electromagnetic waves

mechanical waves

they require a medium such as air or water to travel through

electromagnetic waves

does not require a medium through which to travel

two types mechanical waves

transverse and longitudinal

transverse waves

particles of the medium move perpendicular to the direction of wave travel (water waves)

longitudinal waves

particles of the medium more in a direction parallel to the direction of wave travel (sound)

Crest (peak)

the highest point of a wave

trough

the lowest point of a wave

equilibrium point

the vertical midpoint of a wave

wavelength (lamda)

the distance between two crests or troughs

amplitude (m)

the maximum displacement of a wave peak or trough from equilibrium

frequency (f)

the number of waves which pass a fixed point in one second (Hz)

period (T)

the time a wave takes to complete a wavelength (s)