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SOUN D by: Nick & Julian - PowerPoint PPT Presentation


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SOUN D by: Nick & Julian. How Sound Works :-]. Sound is made when two things touch. Sound travels in waves. E.x when a drumstick hits the face of the drum it vibrates/moves. Volume. Volume is how loud or soft a sound is. E.X how loud or how soft your TV.

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Presentation Transcript
how sound works
How Sound Works :-]
  • Sound is made when two things touch.
  • Sound travels in waves.
  • E.x when a drumstick hits the face of the drum it vibrates/moves.
volume
Volume
  • Volume is how loud or soft a sound is.
  • E.X how loud or how soft your TV
pitch
Pitch
  • A pitch is how high or low a sound is.
  • E.X a long string has a low pitch and a short string has high pitch.
decibels
Decibels
  • Is the measurement of sound.
  • A dishwasher is 80 dB loud.
frequency
Frequency
  • Frequency is the number of vibrations per second.
  • A sound with a high pitch has a high frequency.
slide7
QUIZ
  • What unit measures sound????
  • Decibels
  • What is the loudness of sound????
  • Volume
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resources
RESOURCES
  • HSP Science book.