Waves

Wave frequency can be seen as the
number of complete of complete waves
passing a fixed point in one second.

Frequency is measured in Hertz (Hz)
1 Hertz is 1 wave per second
1 kilohertz (KHz) is 1000 Hz and is 1000
waves per second
1 megahertz is 1000000 Hertz (Mhz)
1 gigahertz is1000000000 Hertz (Ghz)

The wave equation

Types of wave

Transverse
wave

This is where The
particle movement
producing the wave
Is at right angles to the
direction of the wave
motion
Light (electromagnetic
Spectrum) waves,
water waves and
secondary (S) waves
in earthquakes are
transverse waves.

Longitudinal
wave

This is where the
particle movement
is parallel (in the same
direction) as the wave
motion. These are
called pressure waves.
Sound and primary
waves (P) in
earthquakes are
longitudinal waves.