Electro Magnetic Waves

Electro Magnetic Waves

1. Waves

   • A means of transferring energy without there being any transfer of substances between the points.
   • Transverse
     • Particles vibrate at right angles to the direction of the waves motion.
   • Longitudinal
     • Wave energy travels in the same direction as the particles within the wave vibrate.

2. Wavelengths

   • Distance between one wave peak and the next wave peak
   • Measured in meters
   • Amplitude - height of wave peak
   • Troughs - width of wave peak

3. Frequency

   • The number of wave peaks that pass a certain point in one second.
   • Measured in Hertz (Hz)

4. Wave speed

   • Frequency x wave length