Tuning a Trumpet for Cold Weather Performance

[crosbykins]

Homework Statement

A trumpet is essentially an open air column. Assuming that it is tuned inside a warm building. When it is taken outside for a parade on a cold day, what will happen to the sound from the instrument?

Homework Equations

The Attempt at a Solution

-so outside the air is colder so sound travels slower...that's really all i have, help please! thanks in advance! :)

 

[Stonebridge]

Homework Statement

A trumpet is essentially an open air column. Assuming that it is tuned inside a warm building. When it is taken outside for a parade on a cold day, what will happen to the sound from the instrument?

Homework Equations

The Attempt at a Solution

-so outside the air is colder so sound travels slower...that's really all i have, help please! thanks in advance! :)

There is a formula that tells you the frequency of the note produced in terms of v and the wavelength. You know that v will be less, and assuming the length of the tube doesn't change significantly (and thus the wavelength), you can work out what happens to the frequency.
Do you know this formula relating v, f and λ?

 

[crosbykins]

There is a formula that tells you the frequency of the note produced in terms of v and the wavelength. You know that v will be less, and assuming the length of the tube doesn't change significantly (and thus the wavelength), you can work out what happens to the frequency.
Do you know this formula relating v, f and λ?

-so, f = v/lambda, since v is less than f will also be smaller, lower f means a lower pitch, so the instrument will produce lower sound...is that right

*thanks for the help

 

[Stonebridge]

-so, f = v/lambda, since v is less than f will also be smaller, lower f means a lower pitch, so the instrument will produce lower sound...is that right

*thanks for the help

That's a correct deduction. :)

 

[crosbykins]

That's a correct deduction. :)

thanks for the help!