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Quiz

Ch.20

Winston Schultz 13 perguntas

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Perguntas do quiz (13)

  1. 1The source of every sound is something that is
    1. Amoving.
    2. Ba net emitter of energy.
    3. Cvibrating.
    4. Daccelerating.
    5. Eundergoing simple harmonic motion.
  2. 2A sound wave is a
    1. Atransverse wave.
    2. Blongitudinal wave.
    3. Call of the above
    4. Dnone of the above
  3. 3A high-frequency sound source produces a high
    1. Aamplitude.
    2. Bpitch.
    3. Cspeed.
    4. Dall of the above
    5. Enone of the above
  4. 4The approximate range of human hearing is
    1. A40 hertz to 40,000 hertz.
    2. B20 hertz to 20,000 hertz.
    3. C10 hertz to 10,000 hertz.
    4. Dnone of the above
  5. 5A wave of frequency of 1000 hertz vibrates at
    1. Amore than 1000 cycles per second.
    2. Bless than 1000 cycles per second.
    3. C1000 cycles per second.
    4. Dnone of the above
  6. 6Sound travels fastest in
    1. Asteel.
    2. Ba vacuum.
    3. Cair.
    4. Dwater.
  7. 7Sound waves cannot travel in
    1. Aa vacuum.
    2. Bwater.
    3. Cair.
    4. Dsteel.
  8. 8In air and in water the same sound travels with different
    1. Aspeeds.
    2. Bfrequencies.
    3. Cboth of these
    4. Dneither of these
  9. 9Compressions and rarefactions normally travel in
    1. Aright angles to the wave direction.
    2. Bopposite directions in a wave.
    3. Cthe same direction in a wave.
    4. Dnone of the above
  10. 10Which does NOT belong to the same family?
    1. Ashock waves
    2. Binfrasonic waves
    3. Cradio waves
    4. Dultrasonic waves
    5. Elongitudinal waves

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