the electromagnetic spectrum:

• which part of the electromagnetic spectrum can our eyes detect

  visible
• which part of the electromagnetic spectrum has the longest wavelength

  gamma rays
• which part of the electromagnetic spectrum is used in remote controls

  infrared
• what speed do all electromagnetic waves travel at in a vacuum

  3x10 power of 8 m/s
• which wave on the electromagnetic spectrum carries the most energy

  gamma rays
• what do we call the process of removing an electron from an atom

  ionisation
• which part of the electromagnetic spectrum is most ionising

  gamma rays
• name a use for ultraviolet waves

  detecting forgeries/ suntans
• name a use for x-rays

  medical imaging
• which colour is the best absorber of infrared radiation

  matte black
• which colour is the best emitter of infrared radiation

  matte black
• what is the equation which links frequency ( f ), wavelength ( λ ), wave speed ( v ) 


  wave speed= frequency x wavelength
• which principle is used in fibre optic cables

  total internal reflection
• which electromagnetic wave is used in satellite communications

  microwaves
• which part of the electromagnetic spectrum has the shortest wavelength

  gamma rays