Noise vs. Music
What is the definition of noise?
A collection of sounds that have random patterns and pitches.
Name a type of instrument that uses strings.
Violin.
What is sound quality?
Describes the differences between sounds of the same pitch and loudness.
What is the process of resonance?
An object vibrates by absorbing energy at its natural frequencies.
What causes beats in sound?
The interference of sound waves with slightly different frequencies.
What is music made up of?
Sounds that are deliberately used in a regular pattern
How do brass instruments produce sound?
By the vibrations of a person’s lips against a mouthpiece.
What is pitch?
A result of the frequency of sound waves.
Give an example of how resonance works in musical instruments.
In brass instruments, vibrating lips cause the air inside to vibrate and amplify the sound.
What happens when compressions overlap in sound waves?
Loudness increases.
How do the sound waves of music differ from those of noise?
Music has smooth sound waves, while noise has random patterns.
What is a resonator?
A hollow chamber that amplifies sound when the air inside vibrates.
How do overtones affect sound quality?
They create unique sound characteristics that differentiate instruments.
Why is resonance important for string instruments?
It amplifies the sound produced by vibrating strings.
What occurs when rarefactions overlap with compressions?
Loudness decreases.
What is an overtone?
A vibration whose frequency is a multiple of the fundamental frequency.
Describe how percussion instruments make sounds.
They are struck, shaken, rubbed, or brushed to produce sound.
What is resonance in music?
When an object vibrates at its natural frequencies due to external energy.
How does an electric guitar use resonance?
It uses pickups that convert sound into electric signals which are amplified.
How can you tell if two instruments are out of tune?
You hear a pulsing variation in loudness known as beats
Explain the difference between noise and music in your own words.
Noise consists of random sounds, while music is organized and structured.
What determines the pitch of sound in wind instruments?
The length of the vibrating tube of air.
Explain how sound waves create beats.
Beats occur when sound waves with slightly different frequencies combine, producing a low-frequency pulsing variation.
Describe how resonance can affect the loudness of a sound.
It increases the loudness by amplifying the vibrations produced by the instrument.
If a guitar string vibrates at 440 Hz and produces two beats per second, what are the possible frequencies of a second string?
438 Hz or 442 Hz.