P6 - Waves

P6 - Waves

1. longitudinal

   • compression where the particles are close together
     • rarefraction where the particles are far apart
   • the wave move in the derions of travel
     • like sound wave

2. transverse

   • Transverse wave that is a motion all the point on a wave along the path to the direction of the wave advance

3. wavelength

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

4. frequency

   • In physics, the term frequency refers to the number of waves that pass a fixed point in unit time. It also describes the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.
     • the units of frequency are hertz

5. hertz

   • hertz is used to measure the frequency

6. pitch

   • how high or low the sound is
   • microphone
     • takes sound wave and turns them into electrical signals
     • speakers
       • takes electrical signals and turns thenm into a sound waves

7. volume

   • how loud the sound is

8. amplitude

   • he height of the wave above the centre line

9. types of wave

   • transverse
     • the wave move across the directieion of travel
       • like light wave or water waves

10. the ear

    • pinna
      • ear cannel
        • ossicles
          • cholea
            • auditory nerves
              • brain

11. the speed of sound

    • sound travel fastes in solid
    • i water sound stravel at 1500m/s
    • in air sound sound travel at 330m/s
    • sound does not travel ina vaccum