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SOUND

SOUND. What do you hear?. What do you hear?. DID YOU EVER WONDER HOW YOU HEAR THESE THINGS?. WAVES. Transversal Waves. Crest. Longitudinal Waves. AMPLITUDE – Height of the wave The higher the amplitude, the louder the sound.

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SOUND

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  1. SOUND

  2. What do you hear?

  3. What do you hear? • DID YOU EVER WONDER HOW YOU HEAR THESE THINGS?

  4. WAVES

  5. Transversal Waves Crest

  6. Longitudinal Waves

  7. AMPLITUDE – Height of the waveThe higher the amplitude, the louder the sound

  8. Frequency – Number of waves per second.High frequency, higher the pitch

  9. SOUND WAVES

  10. Must travel in a MEDIUM.

  11. SPEED OF SOUND

  12. SOUND TO THE EAR

  13. How a trumpet works! • http://www.youtube.com/watch?v=olA3TrgnK7o&safety_mode=true&persist_safety_mode=1&safe=active

  14. How a drum works! • http://www.youtube.com/watch?v=jR17iCbMMOA&safety_mode=true&persist_safety_mode=1&safe=active

  15. How an electric guitar works! • http://www.youtube.com/watch?v=lBAZepM5F_0&safety_mode=true&persist_safety_mode=1&safe=active

  16. How a cell phone works! • http://www.youtube.com/watch?v=xv9dRENgDoc&safety_mode=true&persist_safety_mode=1&safe=active

  17. REVIEW • SOUND TRAVELS IN ___________ • The higher the amplitude, the _________ the sound • The higher the frequency, the __________ the pitch

  18. REVIEW • In what medium does sound travel fastest? Solid, liquid or gas • Sound is usually measured in _________. • Humans hear from _____ to ______ Htz

  19. Label the parts of the waves

  20. What did you learn today?

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