Effects of Doubling Frequency on Sound Properties

[DeathCrawls]

Homework Statement

A sound goes up one octave, from 256 Hz to 512 Hz. What happens to the, period, frequency, amplitude, pitch, and speed? (choices are increase decrease or stay same) Why?

Homework Equations

N/A

The Attempt at a Solution

N/A

 

[Geezer]

Without an attempt at a solution, or even you offering some sort of educated guess, I don't know if we're going to be willing to help much.

At least *attempt* an answer...

 

[wbandersonjr]

To begin, what does 256Hz and 512Hz represent? Velocity, frequency, period, amplitude...? That property clearly increased.

Next, what equations do you know that relate to waves. Specifically, what equations relate amplitude, frequency, speed, period, etc.

You can look at the proportionality relationships in the equations to determine which values increase and which decrease.

 

[DeathCrawls]

Haha alright sorry
I do believe that the period of a higher pitch will increase because of a higher frequency in the vibrations, the frequency would obviously increase due to Hz increasing, Amp, i think it could stay the same? i am a little confused on that one, higher pitch due to higher frequency, and the saem speed going through the air

 

[wbandersonjr]

Yup, looks good. The pitch will increase or decrease with the frequency. Your right with the amplitude staying the same because that is not related to a change in frequency. Same with the speed of the wave.

 

[DeathCrawls]

Thanks

 

[SteamKing]

Haha alright sorry
I do believe that the period of a higher pitch will increase because of a higher frequency in the vibrations, the frequency would obviously increase due to Hz increasing, Amp, i think it could stay the same? i am a little confused on that one, higher pitch due to higher frequency, and the saem speed going through the air

"... period ... will increase because of a higher frequency ..."

You're sure of this?