Year 4 - Sound dissipation

Date: 10th Mar 2025 @ 8:33pm

This week, we looked at what happens to sounds the further away they get. We used the school hall and measured (using a sound meter) the sound (in decibels) of four different sources. We used a whistle, a drum, a whispered sentence and crumpling paper. Using a trundle wheel, we measured 5m, 10m, 15m and 18m. We found that the further away the sound got, the more quiet it became. This is because the sound energy starts to run out - this is called dissipation.