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What is that sound?

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    All about sound
  •   Study   Slideshow
  • The adding or substracting of wave when they meet
    interference
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  • This refers to the size of the wave
    Amplitude
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  • This refers to the number of waves per second
    frequency
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  • What happens to the frequency of the wave when it undergoes constructive interference?
    it stays the same
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  • What happens to the amplitude of the wave when it undergoes destructive interference?
    it becomes smaller/it cancels out
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  • The distance between one peak to one peak or one trough to one trough
    wavelength
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  • The term used when two waves add
    reinforce/ constructive interference
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  • the term used when two waves subtract
    constructive interference
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  • What happens to the pitch when the amplitude increases?
    it stays the same
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  • What happens to the pitch when the frequency decreases?
    The pitch decreases
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  • A sound wave causes particles to vibrate 150 times in two seconds. What is its frequency?
    75 Hz
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  • What does 250 hertz mean?
    the particles vibrates 250 times per second
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  • Give a use for constructive interference.
    speaker positions in concerts/theaters
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  • Give a use for destructive interference.
    Noise cancelling headphones
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  • What is the range of frequency that a human ear can detect?
    25 - 25 000 Hz
    20 - 20 000 Hz
    15 - 15 000 Hz
    10 - 10 000 Hz
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  • The term used for the upper part of the wave
    peak / crest
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