How far does sound travel? - Prompt sheet

Embarking on an investigation to discover the distance sound travels requires careful planning to ensure the integrity of the experiment. Firstly, to maintain a fair test, one must control variables, such as the volume of the sound source, and consistently use the same voice or instrument. The selection of equipment is crucial; items like a decibel meter to measure sound levels and a measuring tape to gauge distance might be necessary. Controlling the loudness can be achieved by using a device that produces a constant volume or by marking a specific point from which to emit sound each time.

Choosing an optimal location is also essential, with considerations for background noise and space; a quiet, open area typically serves best. Formulating a hypothesis is a key step before commencing the experiment. This prediction should be agreed upon between partners, if applicable. As you record your findings, reflect on how sound is generated and the manner in which it propagates. Consider the effects of distance on sound—how does it diminish as it moves away from its origin? These observations will be critical in understanding the nature of sound travel and drawing conclusions from your investigation.