Waves

Waves

1. Frequency is the number of waves per second ( hertz/ Hz)

2. Wave Types

   • Transverse waves (light, IR)
     • Particles move at 90 to the direction of the wave
     • Drawn as wigly lines
   • Longitudinal waves (sound)
     • Particles move parallel to the direction of wave
     • drawn using wavefronts, each line being the peak of a transverse wave or the compression of a longitudinal wave

3. Features

   • wavelength (length between a point on one wave to the same point on the next wave)
     • Is the length between a point on one wave to the same point on the next wave
     • wavespeed/ v ( m/s) = frequency/ f (Hz) x wavelength/ l (m)
   • Wave speed (how far a wave travels in one second)
   • Frequency (Number of waves going past in one second)
   • Peak (the highest point of a wave)
   • Trough ( Lowest point of a wave)
   • Amplitude (distance between the mid point and the peak or trough of a wave)