Waves

Waves

1. sound

   • Longitudinal waves
     • Longitudinal waves are compression waves. Air particles move closer and further apart
   • Require Particles
     • Sound waves require particles to travel through. Sound cannot travel through space because there are no air particles
     • Sound will travel faster and further if the particles are closer together. So sound travels a long way in water compare to air

2. Electromagnetic Spectrum

3. Light

   • Transverse Waves
     • Transverse waves are electromagnetic waves that can travel through space. A clear line of sight is required for light waves to be visible (they are blocked by opaque objects).