Justin+G

THE STUDY OF HOW DIFFERENT OBJECTS MAKE DIFFERENT SOUNDS

JUSTIN G.

2011- 2012

ABSTRACT

The purpose of this experiment is to understand why certain objects produce louder sounds than others and how the sound an object makes is affected when a liquid content, such as water is introduced. Sound waves are made up of vibrating molecules which can be recorded on a decibel meter. The sound level of several household objects including a tennis ball, a sponge, a cup and a water bottle were recorded when dropped from different heights. Liquid content was then placed inside those objects and dropped from same heights. It was discovered that they recorded higher sound levels when a liquid content is introduced.

CONCLUSION

The data shows that larger objects produce more sound than smaller objects and heavier objects produce more sound than lighter objects. It was hypothesized that objects will produce more sound when they have liquid inside because liquid made objects heavier and it was true. Based on the observations, objects with liquid inside make more sound than the same objects when they are empty perhaps because the liquid inside made them heavier and creates more vibration which produces more sound. In the future I will produce more experiments that deal with a height variation.