We used our stick/table/motion detector set-up to gather some great data the other day, and today we turned to another student investigation idea, using an app!
We used a volume app to see what happens to the waves when the volume increases and here's what we found:
We used a volume app to see what happens to the waves when the volume increases and here's what we found:
We saw the following:
1. The height of the waves kept increasing as the volume increased.
2. The number of waves per unit of time stayed the same.
We officially defined this "height" as amplitude, and this reference lets us understand that the volume was changing. We're wondering what happens when the number of waves changes...we're thinking that's related to pitch since that's the other way we know sounds can change!
1. The height of the waves kept increasing as the volume increased.
2. The number of waves per unit of time stayed the same.
We officially defined this "height" as amplitude, and this reference lets us understand that the volume was changing. We're wondering what happens when the number of waves changes...we're thinking that's related to pitch since that's the other way we know sounds can change!