Good vibrations

Friday 11 May 2018

We’ve now moved onto our next mini-topic, Hearing. In this topic, we’ll learn lots about sound: how it is made; how it travels; and how it can be changed.

We’ve already been using musical instruments to discover how sound travels through the vibration of air molecules.

We then measured the volume of sounds around different locations in school using a decibel-o-meter on our iPads. Unsurprisingly, the hall at lunchtime was the loudest at over 100 decibels.

Finally this week, we carried a rather fun, but odd-looking investigation involving coat hangers. From this we learn that sound can also be transmitted through solid materials the same it way it is transmitted through the air – vibration of molecules.