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Questions and Answers
How is the loudness of sound measured?
How is the loudness of sound measured?
- In amplitudes (A)
- In kilohertz (kHz)
- In decibars (db)
- In decibels (dB) (correct)
What is the relationship between striking a drum hard and the loudness of the sound produced?
What is the relationship between striking a drum hard and the loudness of the sound produced?
- Striking the drum hard decreases the energy of the sound waves, leading to greater loudness.
- Striking the drum hard increases the energy of the sound waves, leading to greater loudness. (correct)
- Striking the drum hard has no effect on the energy of the sound waves or the loudness.
- Striking the drum hard causes the sound waves to dissipate, reducing the loudness.
According to the decibel scale, what is the softest sound that an average person can make out?
According to the decibel scale, what is the softest sound that an average person can make out?
- 0 dB (correct)
- 10 dB
- 20 dB
- 30 dB
What can happen to the ears with long periods of exposure to sound levels of 90 dB or higher?
What can happen to the ears with long periods of exposure to sound levels of 90 dB or higher?
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What is the relationship between loudness and high-pitched sounds?
What is the relationship between loudness and high-pitched sounds?
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What is the relationship between amplitude and the pitch of a sound?
What is the relationship between amplitude and the pitch of a sound?
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What is the purpose of the activity involving the toy guitar?
What is the purpose of the activity involving the toy guitar?
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Which type of sound has a higher pitch?
Which type of sound has a higher pitch?
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What is the relationship between decibel level and loudness?
What is the relationship between decibel level and loudness?
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