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Students work in groups of 2 to create a sound room out of a collection of materials provided by the teacher and then selected by the students. Students will test their sound rooms periodically to determine if their structure has the ability to dampen or even completely eliminate a tone, or ringtone emitted from a cell phone that is turned to max. The goal is for students to rearrange and recombine materials until they have achieved sound cancellation, dampening the waves emitted from the cell phone to a degree that the tone is inaudible. The efficacy of the sound rooms will be checked by a decibel meter on an iPad or Android device (free app easily acquired in an app store). Students will check the decibel reading before their structure is placed over top of the cell phone and then after - comparing the drop in decibels. They will track their results on a document as they hopefully observe the efficiency of their structure improving over time and with each test. One important constraint, the students are limited by a budget. The materials will be “purchased” from an in class store utilizing “real world” pricing.
Material Type:
Activity/Lab
Authors:
Carrie Robledo,
RUSSELL THOMPSON