7.09 Fictional PhysiCS - Mechanical Waves [Put Your Name Here] Purpose To learn about the possibility of communicating using only tin cans and some string. Your Task Design an experiment to test what affects the performance of a tin can telephone. You will write this experiment up as a formal lab report. As much as possible you should quantify all variables you are studying. You may result to a rating system for sound quality if needed. but try to use an Andmid or Apple app for measuring the decibel of the received sound if possible to use in conjunction with your rating of the clarity of the sound. Of course you will need a consistent source of sound as well. Possible Factors 0 0... Can size Can material String length String tension Others Layout of Paper Introduction 0 Purpose - question you are trying to answer. 0 Hypothesis - testable possible answer to your question. 0 Background infon'nation with citations - how does a tin can phone work? Use proper terms learned in this unit. Experimental 0 Materials 0 Procedure Data and Analysis 0 Raw data (table) 0 Graph Conclusion and Evaluation Grading Rubric Evaluation is very vague. on all data. Evaluation is slightly vague. Section Poor Fair Excellent Introduction Purpose and Purpose and Purpose and _1 Opts hypothesis are hypothesis are hypothesis are clearly stated. clearly stated. Some clearly stated. All background background relevant background information is information is information is incomplete and not missing or poorly present and cited properly cited. cited. properly where needed. Experimental Procedure is not Procedure is clear Procedure is written _1 Opts clear enough to be enough for anyone clearly enough for followed, most familiar with the anyone to follow. all materials are listed. experiment to follow materials needed are it. Most needed listed. materials are listed. Data Not all data is All data is clearly All data is clearly _10pts labeled and labeled. but not labeled and measured to proper measured to the measured to proper precision. Graph is proper precision. precision. Graph is not labeled. Graph is fairly well properly constructed constructed. slightly and labeled. messy. labeled. Conclusion Conclusion answers Conclusion answers Conclusion answers _10pts the purpose. the purpose, draws the purpose and draws on all data. Evaluation is thoughtful and specically mentions areas of improvement for the experiment