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What is that sound?

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  • Two sound waves have equal frequencies and amplitude of 600 Hz and 0.25 mm, respectively. What will be the frequency if it undergoes interference?
    600 Hz
  • The distance between one peak to one peak or one trough to one trough
    wavelength
  • What happens to the pitch when the amplitude increases?
    it stays the same
  • The term used for the upper part of the wave
    peak / crest
  • The equipment used to visualize waveform is called
    osciloscope
  • Two sound waves have equal frequencies and amplitude of 600 Hz and 0.25 mm, respectively. What will be the amplitude if it undergoes interference?
    0.50 mm
  • What does 250 hertz mean?
    the particles vibrates 250 times per second
  • The term used when two waves add
    reinforce/ constructive interference
  • the term used when two waves subtract
    constructive interference
  • Give a use for constructive interference.
    speaker positions in concerts/theaters
  • Give a use for destructive interference.
    Noise cancelling headphones
  • Which will cause the pitch to increase?
    decrease the number of vibrations
    make the wave larger
    make the wave smaller
    increase the number of vibrations
  • This refers to the size of the wave
    Amplitude
  • The term used for the lower part of the wave
    trough
  • What happens to the amplitude of the wave when it undergoes destructive interference?
    it becomes smaller/it cancels out
  • What happens to the frequency of the wave when it undergoes constructive interference?
    it stays the same
  • The adding or substracting of wave when they meet
    interference
  • A sound wave causes particles to vibrate 150 times in two seconds. What is its frequency?
    75 Hz
  • Which describes frequency?
    the number of time the particles move
    the maximum distance that particles move
    the direction that the particles move
    the minimum distance that particles move
  • What is the range of frequency that a human ear can detect?
    15 - 15 000 Hz
    10 - 10 000 Hz
    25 - 25 000 Hz
    20 - 20 000 Hz
  • Which will cause the sound to get louder?
    cancellation of wave
    refraction of wave
    reinforcement of wave
    reflection of wave
  • This refers to the number of waves per second
    frequency
  • TRUE or FALSE: The more vibrations that wave contain, the lower the pitch will be.
    FALSE
  • What happens to the pitch when the frequency decreases?
    The pitch decreases
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