P6- waves

P6- waves

1. Amplitude

   • How loud it is

2. Wavelength

   • The length of a single wave, measured from one wave peak to the next.

3. Frequency

   • How often something is

4. Hertz

   • The measurement of sound waves

5. Pitch

   • The frequency of a sound. Sounds with a high pitch have a high frequency.

6. Volume

   • How loud it is

7. Echo

   • A sound caused by the reflection of sound waves from a smooth surface back to the listener.

8. longitudinal wave

   • A wave that moves in the same direction as the direction in which the particles are vibrating.

9. Types of waves

   • Transverse
     • The waves move across the direction
       • Like light waves or water waves
   • Loungitudinal
     • The waves move in the direction of travel
       • like sound waves

10. speed of sound

    • Air
      • Sound travels thought air 332 metres per second
    • water
      • Sound travels thought water 1,480 meters per second
    • gas
      • Sound travels thought a gas 331 m/s
    • steel
      • Sound travels thought steel 5,960 meters per second
    • wood
      • Sound travels thought wood at 4,000 m/s
    • glass
      • Sound travels thought Glass at 4540 m/s
    • Gold
      • Sound travels thought Gold 3240 m/s

11. The ear

    • Pinna
      • ear canal
        • ear drum
          • osslcles
            • cochlea
              • auditory nerve
                • brain
              • tiny hairs move and convert the sound waves into an electrical
            • hammer, anvill, stirrup
    • How the ear works
      • 1 Sound vibrations are collected by the outer ear called the Pinna.
        • 2 The sound is then funnelled down the ear canal where it reaches the ear drum
          • 3 The ear drum vibrates and these vibratations are passed along the bones of the middle ear called the hammer

12. speaker

    • Takes electrical singlnals and turns them into a sound wave