Chapter 26 Reading Quiz

Mr. Pennisi

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  1. Sound is which kind of wave.

    2. Your answer:
    Both
    Longitudinal
    Transverse

  2. A ______ object is needed to produce a sound.

    3. Your answer:
    hard
    large
    vibrating
    heavy

  3. The frequency of a sound is perceived as its ______

    4. Your answer:
    tone.
    volume.
    pitch.
    loudness.

  4. Which of these frequencies is beyond human hearing?

    5. Your answer:
    2000 Hz
    None of these
    30 Hz
    18000 Hz

  5. The part of a sound wave that is "stretched out" is called a

    6. Your answer:
    rarefaction
    intention
    extension
    compression

  6. In which material does sound travel fastest?

    7. Your answer:
    Gas
    Solid
    Vaccuum
    Liquid

  7. The speed of sound at room temperature of 20°C IS

    8. Your answer:
    331 m/s
    343 m/s
    347 m/s
    340 m/s

  8. Sound intensity relates to

    9. Your answer:
    the amplitude of the sound wave.
    the frequency of the sound wave squared.
    the amplitude of the sound wave squared
    the frequency of the sound wave.

  9. Loudness is measured in

    10. Your answer:
    Decibels
    Logarithms
    Watts
    Joules

  10. How much louder is a 20dB sound compared to the quietest sound we can hear (0 dB)?

    11. Your answer:
    20 times
    2 times
    100 times
    10 times

  11. A short tuning fork will have a ____ natural frequency when comared to a larger one.

    12. Your answer:
    the same
    higher
    lower

  12. If you sit in front of your stereo but you move slightly (1/2 wavelength) closer to one speaker than the other you will hear

    13. Your answer:
    a louder sound.
    a quieter sound.
    no difference

  13. Beats occur when

    14. Your answer:
    two sounds, far in frequency are played.
    any two sounds are played.
    two sounds, close in frequency are played.
    one sound changes volume.

  14. A sound wave travels at 330 m/s and is produced by a tuning fork vibrating at 440 Hz, it's wavelength is

    15. Your answer:
    0.75 m
    1.33 m
    770 m
    110 m

  15. Two tuning forks of frequency 344 Hz and 347 Hz are played. The beat frequency observed will be

    16. Your answer:
    1.008 Hz
    3 Hz
    691 Hz
    119,368 Hz

  16. How far away is a storm if you note a 3 second delay between the flash and the thunder? (Assume speed of sound is 340 m/s)

    17. Your answer:
    333 m
    1020 m
    113 m
    340 m

  17. Rack these materials for their sound carrying ability (best to worst).

    18. Your answer:
    steel, rubber, water, air
    steel, water, air, rubber
    water, air, rubber, steel
    steel, water, air, rubber

  18. When sound is carried across a lake at night it is because the air near the surface of the lake

    19. Links to reference material:
    Refraction of Sound Waves

    Your answer:
    is warmer than the air above it.
    is cooler than the air above it
    is in thermal equilibrium with the air above it.
    is less dense than the air above it.

    Green Wave

  19. The green wave could represent which sound phenomena?

    20. Your answer:
    frequency
    intensity
    beats
    decibels

    Interference Pattern

  20. The orange lines represent

    21. Your answer:
    antinodes
    conjunctions
    nodes
    decibels

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