Podcast
Questions and Answers
What is a defining characteristic of music compared to noise?
What is a defining characteristic of music compared to noise?
- It has an irregular pattern.
- It is always pleasant to everyone.
- It is always played loudly.
- It usually has a regular or smooth, periodic pattern. (correct)
Which statement accurately describes ultrasound?
Which statement accurately describes ultrasound?
- It is used for medical purposes and underwater detection. (correct)
- It produces sounds that are always considered music.
- It has a frequency less than 20,000 Hz.
- Humans can hear ultrasound sounds.
How can the perception of sound vary among individuals?
How can the perception of sound vary among individuals?
- People can universally agree on what constitutes music.
- Loud sounds are only perceived as music.
- What one person considers music, another may view as noise. (correct)
- Sound is always pleasant to everyone.
In what ways are noise and music differentiated?
In what ways are noise and music differentiated?
What frequency range is classified as ultrasound?
What frequency range is classified as ultrasound?
Flashcards
Musical Sounds
Musical Sounds
Sounds that are considered pleasant, harmonious, and soothing. They typically have a regular or smooth, periodic pattern.
Noise
Noise
Sounds that are perceived as unpleasant, chaotic, and irritating. They have an irregular pattern.
Ultrasound
Ultrasound
The ability to hear sounds above 20,000 Hz. Humans cannot hear these sounds.
Ultrasound waves
Ultrasound waves
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SONAR
SONAR
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Study Notes
Audible and Inaudible Sounds
- Audible sounds have frequencies between 20 Hz and 20,000 Hz.
- Inaudible sounds have frequencies above or below this range.
- Bats, dogs, and monkeys can hear sounds beyond the 20,000 Hz range.
- Elephants and dolphins can hear sounds below 20 Hz.
- Ultrasound, with frequencies above 20,000 Hz, are used in medicine and to detect objects underwater.
Musical Sound and Noise
- Musical sounds are pleasant and melodic.
- Musical sounds are harmonious and often have a smooth, regular, periodic pattern.
- Noise is unpleasant and meaningless.
- Noise is chaotic and has an irregular pattern.
- The perception of sound as music or noise is subjective and varies from person to person.
- Loud music can be perceived as noise.
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