- 1. What is the main frequency of my voice in this picture?
A) 300
B) 4000
C) 4500
D) 450
- 2. Which track has a higher pitched sound - Track 1 (on top) or Track 2 (on the bottom)
A) Track 1
B) Track 2
C) They are the same
- 3. Tuning fork C has a frequency of 512 Hz and tuning for G has a frequency of 341. Tuning fork C is short and tuning fork G is long. Using this information, tell me who has longer vocal chords - men or women.
A) Women have shorter vocal cords because they have higher voices
B) Women have longer vocal chords because they have higher voices
C) Men have shorter vocal chords because they have lower voices
D) Men have longer vocal chords because they have higher voices
- 4. Why do sound studios have padded walls?
A) To protect people from hurting each other
B) To make the room look better
C) Sound studios never have padded walls
D) To insulate the walls against sound leaks
A) Talking through a can with a string attached to another can
B) Listening to pings on a phone
C) Finding where you are with a GPS system
D) Finding out where you are based on sound waves that bounce off other objects
- 6. What is the usual range of human hearing?
A) 20-17,000 Hz
B) 300-3000 Hz
C) 20-20,000 Hz
D) 500-2000 Hz
- 7. What is the usual range of the human voice on average?
A) 20-17,000 Hz
B) 300-3000 Hz
C) 20-20,000 Hz
D) 500-2000 Hz
- 8. You listen to music at about 90 decibels for a half hour. Is this likely to cause damage to your hearing?
A) No
B) Yes
- 9. Which tuning fork will have a higher pitched sound?
A) 356 Hz
B) 256 Hz
C) 512 Hz
D) 312 Hz
- 10. If Ms. Deirdre were talking to you in a normal voice, what might you expect her decibel level to be at?
A) 60
B) 5 dB
C) 30
D) 100
E) 80
- 11. If I adjusted the amplitude of my voice, what would change?
A) wavelength
B) pitch
C) volume
D) frequency
- 12. Explain why sound travels faster in most solids than in liquids.
- 13. Why can you not hear anything in space?
- 14. What is the dominant frequency of my voice in this sound clip?
A) 550 Hz
B) 100 Hz
C) 1000 Hz
D) 3000 Hz
- 15. Luise whispers a secret to Agustina. What approximate decibel level is her voice at while she whispers?
A) 60 dB
B) 90dB
C) 100 dB
D) 1 dB
E) 30 dB
- 16. Adrian is looking through his grandmothers attic when he finds a box of whistles. He tests out one of the whistles and it lets out a very high pitched sound. Later, he plays the whistle for his grandmother. Adrian can hear it, but his grandmother cannot. What is the most likely frequency range of the whistle?
A) 3000 - 6000 Hz
B) 6000 - 8,000 Hz
C) 17,000 - 20,000 Hz
D) 200 - 900 Hz
- 17. If you were stuck in an underground tunnel with no light at all, which skill would be the most valuable?
A) Subtronic valuation
B) Fibromyalgia
C) Echolocation
D) Ultrasonic hearing (ability to hear over 20,000 Hz)
- 18. Tuning fork A has a frequency of 384 Hz. Fork A is longer than tuning fork C which has a frequency of 512 Hz. Based on this information - Who has longer vocal chords on average, men or women?
A) Mens and Womens vocal chords are usually about the same length.
B) Women have longer vocal chords
C) Men have longer vocal chords
- 19. A group of children are singing in a concert. What might you expect their average frequency range to be?
A) 525 Hz
B) 950 Hz
C) 1500 Hz
D) 200 Hz
- 20. Which part of the ear helps convert vibrations into electrical signals that get sent to your brain?
A) Outer Ear (Pinna)
B) Ear Bones (Ossicles)
C) Eardrum
D) Small hairs in the cochlea
- 21. You are giving a hearing test to another 14 year old? He hears tones at 300 Hz; 800 Hz; 12,000 Hz; 19,000 Hz. He is not able to hear tones at 10 Hz; 21,000 Hz; and 25,000 Hz. What would you tell him about the his hearing level?
A) Above the normal range (he can hear more than an average person his age)
B) Below the normal range (he can't hear everything he should)
C) Normal range
- 22. Augustas and Ugnė are sound editors for a global television network and are editing the World Cup. The fans are blowing vuvuzelas (plastic trumpets) very loudly and it is difficult to hear anything else. They decide to cancel out all the frequencies except those common to the human voice. Which frequencies should they keep?
A) 2000 - 4000
B) 0 - 400
C) 5000 - 10,000
D) 400 - 1800
- 23. Planes taking off can reach up to 130 decibels. Being around this for too long (without protection) is likely to cause hearing loss.
A) False
B) True
- 24. In the movie Star Wars, the Death Star (a giant mechanical planet) explodes in outer space with a loud boooooom that nearly shakes the seats in a theater. Explain what is wrong with this scene!?
- 25. If I started singing at 400 Hz and then started singing at 700 Hz, I would have ....
A) Increased the pitch of my voice
B) Increased the volume of my voice
C) Increased my amplitude of my voice
D) Increased the wavelength of my voice
- 26. Which track has a higher frequency?
A) Track 2 is higher
B) They are the same
C) Track 1 is higher
- 27. Which track has a higher amplitude?
A) Track B is higher
B) Track A is higher
C) They are the same
- 28. In a movie, people are trapped in an abandoned train tunnel a hundred metres underground. The police can hear them banging on the metal rails and shouting up at them. Which do they hear first (the banging or the shouting) and why?
A) The banging - sound travels more strongly through solids than through the air.
B) The banging - sound travels faster through air than through the metal.
C) The shouting - sound travels faster through air than through the metal.
D) The shouting - sound travels more slowly through solids than through the air.
E) The banging - sound travels faster through solids than through the air.
- 29. You do a hearing experiment on a 6 year old boy, a 35 year old man, and a 65 year old man. What is the correct order of their hearing abilities (best to worst)?
A) 65 > 35 > 6
B) 6 > 35 > 65
C) 65 > 6 > 35
D) 35 > 6 > 65
E) 6 > 65 > 35
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