Gretchen Brinza
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Acoustical Engineering

Each and every day, every one of us interacts with different sounds.  These sounds can serve as a way to communicate, to inform, or to annoy us!  Acoustical engineers help develop technologies that are focused on sound and are sound experts.  They know about pitch and volume and how to change factors that affect these properties. Whether they work to amplify sound or to dampen it, their work is very important to us!

Home

11.  Showing Off Our Sound Technologies!

4/24/2014

 
Third graders showed off their sound technologies by demonstrating how they worked in front of their fellow acoustical engineers.  They had to make sure they showcased how they met the criteria of the challenge--that their sound technologies could change in both pitch and volume.  Way to go third graders...I mean acoustical engineers!

10.  Sound Technology Designs!

4/23/2014

 
With their plans approved, third graders are building their sound technologies, making sure they change in both pitch and volume as was required by the criteria of the challenge.  Check out their amazing work...we'll be able to test them in front of a crowd soon to see if they meet the goal of the challenge...to get people's attention in the sometimes noisy cafeteria!

9.  An Acoustical Engineering Problem...

4/22/2014

 
Our school's cafeteria can get a bit noisy at times.  In fact, it can be a problem when a class needs to follow the directions of the adults in charge, yet they can't hear them.  As a result, third graders have decided to help solve this problem.  What better way to get everyone's attention than with a sound technology!

Using everyday materials, third graders will be designing and creating a technology that can change in both pitch and volume.  We agreed that the pitch should change so that it can be heard over the different levels of pitch in the cafeteria (meaning the voices of Kindergartners have a different pitch than our fifth graders)!  And it should absolutely change in volume in case the volume of the cafeteria changes, too.

Our first focus as engineers is always asking good questions, and third graders have reviewed how we can change both the pitch and the volume of various technologies.  Third graders have moved on to brainstorming their technology designs and will then plan out their designs with a partner!  Check back soon to see how some of their plans come into action!  Will they be able to change both in pitch and in volume?  Will they also be able to get everyone's attention in the noisy cafeteria?  

    Mrs. Brinza

    What sounds have you heard today?

    What sounds make you happy?  Annoy you?

    Archives

    April 2014
    March 2014
    February 2014
    January 2014

    Useful Links
    • Sound Simulation
    • Sound and Hearing
    • The Doppler Train
    • Changing Sounds
    • Factors that Affect Pitch


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