The Effect of Acoustic Resonance on the Radius formed by Chladni Figures formed by the Chladni Plate Method
School Name
Spring Valley High School
Grade Level
11th Grade
Presentation Topic
Physics
Presentation Type
Non-Mentored
Abstract
Cymatics is the broad study of waves and how they interact with and change mediums. The significance of cymatics derives from the use of waves in every scientific medium in some manner. The most common way that cymatics are shown is through the Chladni plate experiment, which consists of exciting a sand-covered plate by the use of a vibration generator; this action creates geometric patterns in the sand called Chladni figures. This research aimed to investigate how acoustic resonance affects the shape of Chladni figures. It was hypothesized that the decreased resonance would have a larger effect on the Chladni plate due to destructive interference. The Chladni plate experiment was conducted in four different acoustic settings ranging from an insulated closet to an auditorium stage, and the radius was measured. The results of an ANOVA test yielded a statistically significant result when comparing the radii of each resonance group, p < 0.00001. A conclusion was drawn from these results that acoustic resonance significantly affects the radius of Chladni figures formed by using the Chladni plate experiment. This conclusion results in the determination that due to the constructive interference affecting chladni plates, the Chladni plate experiment can be maximized by preventing any sound insulation from having a dampening effect.
Recommended Citation
Berg, Henry, "The Effect of Acoustic Resonance on the Radius formed by Chladni Figures formed by the Chladni Plate Method" (2024). South Carolina Junior Academy of Science. 514.
https://scholarexchange.furman.edu/scjas/2024/all/514
Location
RITA 365
Start Date
3-23-2024 9:30 AM
Presentation Format
Oral and Written
Group Project
No
The Effect of Acoustic Resonance on the Radius formed by Chladni Figures formed by the Chladni Plate Method
RITA 365
Cymatics is the broad study of waves and how they interact with and change mediums. The significance of cymatics derives from the use of waves in every scientific medium in some manner. The most common way that cymatics are shown is through the Chladni plate experiment, which consists of exciting a sand-covered plate by the use of a vibration generator; this action creates geometric patterns in the sand called Chladni figures. This research aimed to investigate how acoustic resonance affects the shape of Chladni figures. It was hypothesized that the decreased resonance would have a larger effect on the Chladni plate due to destructive interference. The Chladni plate experiment was conducted in four different acoustic settings ranging from an insulated closet to an auditorium stage, and the radius was measured. The results of an ANOVA test yielded a statistically significant result when comparing the radii of each resonance group, p < 0.00001. A conclusion was drawn from these results that acoustic resonance significantly affects the radius of Chladni figures formed by using the Chladni plate experiment. This conclusion results in the determination that due to the constructive interference affecting chladni plates, the Chladni plate experiment can be maximized by preventing any sound insulation from having a dampening effect.
