When the vibrating column of air inside a woodwind or brass instrument is made longer, the pitch (1 point) Responses gets higher. gets higher. gets lower. gets lower. stays the same. stays the same. can no longer be determined. can no longer be determined.
gets lower.
Which of the following is not a percussion instrument? (1 point) Responses tam-tam tam-tam marimba marimba triangle triangle taille
marimba
Which type of instrument uses a mouthpiece? (1 point) Responses single-reed instrument single-reed instrument double-reed instrument double-reed instrument string instrument string instrument percussion instrument
single-reed instrument
When the vibrating column of air inside a woodwind or brass instrument is made longer, the pitch gets lower. This is because the longer column of air takes more time to complete one full vibration or cycle, resulting in a lower frequency of vibrations. The pitch of a sound is directly related to its frequency – higher frequency produces a higher pitch, while lower frequency produces a lower pitch.
To understand why the pitch gets lower when the vibrating column of air is made longer, we can consider the fundamental principle of sound production in these instruments. When air is blown into the instrument, it creates vibrations that travel through the air column. These vibrations are then amplified and modulated by the instrument's structure, creating specific musical notes.
The length of the vibrating air column determines the frequency of the produced sound. In woodwind instruments, such as a flute or clarinet, the length of the vibrating column is altered by opening or closing additional tone holes along the instrument's body. By covering more holes or keys, the effective length of the air column increases, resulting in a longer wavelength and lower frequency.
In brass instruments, such as a trumpet or trombone, the length of the vibrating column is altered by adjusting the position of the player's lips on the mouthpiece. Pushing the lips further into the mouthpiece effectively increases the length of the column, resulting in a lower pitch.
In summary, when the vibrating column of air inside a woodwind or brass instrument is made longer, the pitch of the sound produced gets lower.