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- 1. Multiple Choice
The speed of a wave is 343 m/s. If a source produces a f=555.0 Hz, What is the wavelength?
343
555.0
0.62
190,365
- 2. Multiple Choice
What vibrates in a human to produce sound?
the lungs
the tongue
the vocal cords
nothing
- 3. Multiple Choice
What vibrates in a woodwind instrument
the instrument
a reed
the column of air
lips
- 4. Multiple Choice
What happens to the pitch when the vibrating objects get thinner
goes higher
goes lower
no change
not enough information
- 5. Multiple Choice
What happens to the pitch when the vibrating objects get longer
goes higher
goes lower
no change
not enough information
- 6. Multiple Choice
What happens to the pitch when the vibrating objects get tighter
goes higher
goes lower
no change
not enough information
- 7. Multiple Choice
What is the fundamental frequency
the pitch all instruments can make
the lowest pitch or primary pitch made
the multiple of the pitch made
the octave of the pitch
- 8. Multiple Choice
Why do guitars have bodies? What is this called
to increase sound, forced vibrations
to increase sound, natural vibrations
to increase frequency, natural vibrations
to increase frequency, natural vibrations
- 9. Multiple Choice
Why could your plates or windows rattle when the stereo plays a certain note?
fundamental frequency
natural vibrations
forced vibrations
overtones
- 10. Multiple Choice
Explain why a trombone and a flute sound different even if they are playing the exact same note.
different fundamental frequencies
different overtones
different octaves
different ways to play them
- 11. Multiple ChoiceHearing your brother's music playing from down the hall is an example of what type of wave interaction?reflectioninterferencerefractiondiffraction
- 12. Multiple ChoiceYou and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?sound waves reflecting off smooth, flat surfaces throughout the housesound waves moving around the large roomssound waves moving slowly through airsound waves refracting around corners in the empty rooms
- 13. Multiple Choice______ is how high or low a sound is; depends on the frequency.pitchfrequencysoundmedium
- 14. Multiple ChoiceA wave that requires a medium through which to travelmechanical wavechemical waveelectromagnetic wavepitch
- 15. Multiple ChoiceWhat best describes the doppler effect?An apparent change in frequency of a wave due to the relative motion between a wave source and an observerWhen sound changes pitchWhen light changes colorAn apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
- 16. Multiple ChoiceSound waves travel the FASTEST through _____________.gasesliquidssolids
- Answer choicesTagsAnswer choicesTags