Question

materials: poptube
procedures:

1. condense the poptube so that each crease is fully folded.
2. slowly and gradually pull the pop tube apart.
3. slowly and gradually condense and fold the pop tube together again.
4. observe how the sound changes as you pull apart and fold together the pop tube.

questions:

1. explain what you hear happening as you pull apart the poptube?

deep popping sound thats loud.

1. explain what you hear happening as you condense and fold the pop tube together?

a loud popping sound that is loud

1. what property of sound waves is changing?

frequency and wavelength

Explanation:

The problem involves observing sound changes with a PopTube, related to sound wave properties. In physics (Natural Science subfield), sound wave properties like frequency (pitch) and wavelength (related to frequency via \(v = f\lambda\), where \(v\) is speed, \(f\) frequency, \(\lambda\) wavelength) change as the tube’s structure (affecting air column length, a factor in sound production) changes. Pulling or folding the tube alters the air column, impacting the sound’s frequency (and thus wavelength, if speed is constant). The answer “frequency and wavelength” aligns with physics concepts of sound wave properties.

Answer:

frequency and wavelength