http://www.teachengineering.org/view_activity.php?url=collection/wpi_/activities/wpi_windchime/windchimes_sue.xmlactivitytext/xmlK-12 Outreach Office, design a structureengineering design processfrequencylongitudinal wavemusical notespipetransverse wavewavelengthwave velocitywave velocityfrequencycresttroughwavelengthtransverse waves longitudinal waves

Students are challenged to design and build wind chimes using their knowledge of physics and sound waves, and under given constraints such as weight, cost and number of musical notes it must generate. They make mathematical computations to determine the pipe lengths.

Everyday, engineers design and create products, structures and systems, working within given constraints. In this "open-ended design," the potential exists for many creative solutions! Explain the relationships between wave velocity, wavelength and frequency.Calculate the length of a pipe needed to provide a certain musical note.1042.5TeachEngineering.orghttp://www.teachengineering.org/collection/wpi_/activities/wpi_windchime/handout.dochttp://www.teachengineering.org/collection/wpi_/activities/wpi_windchime/handout.pdfhttp://www.teachengineering.org/collection/wpi_/activities/wpi_windchime/windchime_assessment.xlsS100BB2FMassachusettsScience4.2 Recognize the measurable properties of waves (e.g., velocity, frequency, wavelength) and explain the relationships among them.912S101BEE8MassachusettsScience4.3 Distinguish between transverse and longitudinal waves.912S1006FFFMassachusettsScience4.8 Explain the relationship between the speed of a wave (e.g., sound) and the medium it travels through.912S10206E0MassachusettsScience1.1 Identify and explain the steps of the engineering design process, i.e., identify the problem, research the problem, develop possible solutions, select the best possible solution(s), construct a prototype, test and evaluate, communicate the solution(s), and redesign.912S101DB87MassachusettsMathRelate changes in the measurement of one attribute of an object to changes in other attributes, e.g., how changing the radius or height of a cylinder affects its surface area or volume.910S1141770International_Technology_and_Engineering_Educators_AssociationTechnologyQ. Develop and produce a product or system using a design process. 912United StatesCopyright 2012 - K-12 Outreach Office, Worcester Polytechnic Institutehttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2011-10-259Teacher