P6 - Waves

P6 - Waves

1. frequency

   • how many waves go past in one second
     • the units of frequency are hertz

2. wavelength

   • the distance between two identical points on a wave
     • the units of wavelength are metres

3. amplitude

   • the hight off the wave above the center line

4. pitch

   • how high or low the sound is

5. volume

   • how loud the sound is

6. Microphone

   • speaker
     • takes electrical signals and turns the into a sound wave
   • takes sound waves and turns them into electrical signals

7. types of wave

   • longitudinal
     • the waves move in the direction of travel
       • like sound waves
     • compression where the particles are all close together
       • Rarefaction - where the particles are far apart
   • transverse
     • the waves move across the direction of the travel
       • the light waves or water waves