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Sound

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Turn that music down; I can’t hear myself think.  We’ve all heard that one before, haven’t we? Or maybe you have heard the old brain-teaser: If a tree falls in a forest, where there is no one to hear it, does it make a sound? 
 These are ideas that involve the fundamental concepts of sound.  Sound is a mechanical wave vibrating in a material or medium. It is a longitudinal wave (back and forth), rather than the more familiar transverse wave (up and down) which is normally pictured when one thinks of a wave. In this topic you will develop a model of sound, discover resonance, and even analyze the frequency of sound on a computer.  All of these ideas add up to a great topic about sound, which you are about to explore. So, turn down the radio and lets get started.
      If you have not loaded the GoldWave software into your computer it is now time to do it. GoldWave can be obtained from ScienceScene. Make sure to read the document on “how to install” before installing GoldWave. Follow the directions provided and you should be up and running in no time. In parts C1, C2, and C3 you are asked to include, in your report., a picture of the Goldwave graph for the sound for that part.
         You will be asked to record the air temperature. This will be used in the determination of the speed of sound. As with all of the equipment that is used more than once, you will find that equipment in the kit where it is first used. In this case that would be Measurement. Locate that kit and obtain the thermometer for use in this experiment. Remember to return the equipment to the kit it was first used- - PLEASE.
     When determining the frequency of an unknown sound, students seem to be most successful when they actually do the example using the computer and the indicated tuning fork. Note that you will not get the same exact numbers but will arrive at the same frequency.

Topic Objective

Demonstrate understanding of the Sound topic by mastering the topic objectives, conducting an experiment, applying learning outcomes to related research, stating the relevancy of at least two topic concepts in a written topic report.

Assignment

 Please Note: Part B, of the Laboratory Has Been Rewritten,  Click Here to Read
1.  Read the topic in your textbook.   
2.  Write the Procedure Section of the topic report. The procedure section of the topic report is a summary of what is going to be done for this report. There should be one paragraph for each “part” of the investigation (laboratory). Each paragraph should discuss what is to be done and how it is to be done. 
3.  The Data section of your report.  The Data Section contains the data obtained from the laboratory investigations. The data is presented using the electronic data sheets obtained from the web site. Post any questions you have to the Discussion Board.
4.  Write the Outcomes section of the topic report. The Outcomes section of the topic report presents the specific outcomes for each part of the laboratory activities with respect to the research questions. There should be one paragraph for each “part” of the investigation (laboratory).
5.  Write the Application section of the topic report. The application section of each seminar identifies an activity or activities that involved the web.

Each application includes: 1)A picture that identifies the web site. The picture must include URL and Part of Page as ONE Picture. 2) A description the contents of the web site or activity. 3) An indication on how the web site applies to the topic. 

         
  Visit either of the sites listed below.
           
           

Sound Laboratory
http://library.thinkquest.org/19537/Inter.html

 OR

The Soundry
http://library.thinkquest.org/19537/

OR

     Using any resource, find an article pertaining to Sound and summarize, analyze and relate the article to the concepts of the topic.

6. The Relevancy section of your topic report: 
     a. Identifies and lists a minimum of two concepts presented in this topic. 
     b. Discusses and relates each concept to your life.
7. Write the "Summary" section of your report. The Summary section summarizes the work of the topic. This should include a broad statement of outcome of the the topic, thoughts, based upon the work of this topic including feelings about the content of the topic and how the topic relates to your life.  Also, post this section of your report to the Discussion Board.
8. Take the on-line topic quiz and include your final set of answers in your topic report. Any questions you are uncertain of the answer post to the Discussion Board.
9. Online students submit your topic report, to the Email address assigned by your instructor, before the assigned deadline.
10. Return all equipment to its original package. Make sure that the materials are neat and clean, ready for the next student. Remember part of your grade is dependent upon proper handling of the equipment.

 

"Challenges make you discover things about yourself that you never really know"

Cicely Tyson

 

Last Updated: Monday, October 17, 2005