waves and sound portfolio1 by hedongchenchen

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									    Put this handout in your portfolio in the left pocket, right on top.
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Waves and Sound Portfolio Checklist                                Name________________________
Due Date: Tuesday, March 20, 2012                                  Period ____ Date Submitted_________
Sections
Left Pocket                                       Middle                         Right Pocket
Points: 40                                        Points: 75                     Points: 60

___/10 Reflections                                ___/5 Table of Contents          ___/20 Lab #1 Wavy
___/10 Notes & Summaries                          Sections – Do 4 only @15         ___/20 Lab #2 Wave Table
Assignments                                       ___1. Human Ear                  ___/20 Lab #3 Resonance
___/5 Ch 25/2,5,7-9,12,14,19,22-25                ___2. Noise Pollution
___/5 Ch 25/39,43-49,51,59,62,65                  ___3. Seismic Waves
___/5 Ch26/1-3,6-8,10,11,14,17-19,21-23           ___4. Sonar              ___8. Doppler
___/5 Ch26/26,31,32,34,37,44-46,48-49,51          ___5. Ultrasound         ___9. Sonic Boom
                                                  ___6. Storing Info       ___DRAWING or MUSIC Performance
                                                  ___7. Music
Comments:                                                 Quality Points: 25
___________________________________                       ___Organization
___________________________________                       ___Contents – spelling, grammar
___________________________________                       ___Neatness
___________________________________                       ___Completeness

Total Score: _____________/200 points



Your check list:

___/10 Reflections                         ___/5 Table of Contents      ___/20 Lab #1 Wavy
___/10 Notes & Summaries            Sections – Do 4 only @15     ___/20 Lab #2 Wave Table
Assignments                                ___1. Human Ear              ___/20 Lab #3 Resonance
___/5 Ch 25/2,5,7-9,12,14,19,22-25         ___2. Noise Pollution
___/5 Ch 25/39,43-49,51,59,62,65           ___3. Seismic Waves
___/5 Ch26/1-3,6-8,10,11,14,17-19,21-23    ___4. Sonar           ___8. Doppler
___/5 Ch26/26,31,32,34,37,44-46,48-49,51 ___5. Ultrasound        ___9. Sonic Boom
                                           ___6. Storing Info    ___DRAWING or MUSIC Performance
                                           ___7. Music
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Waves and Sound Portfolio               200 points

Physics I                       Due Date:        Tuesday, March 20, 2012

Place all requested materials in a CLEAN, NEW pocket folder with brads. Put your name, and period on the outside in the
upper right hand corner (minus 10 points if this is not done or cannot be seen).
In the left pocket place the following:
         1. Reflections (handwritten) for Chapters 25&26 (staple these together if more than one sheet)
         2. Notes taken from Waves and Sound notes on my Website and Chapter 25&26 Summaries
         3. Homework for Chapters 25&26 – highlight assignment headings for different pages (staple these together)
In the right pocket place the following three (3) laboratory write-ups:
         All of the pages of EACH lab are to be stapled together. Use correct lab format on your write ups.
         1. Wave Motion Lab (slinkies)
         2. Wave Observation Lab (wave tables)
         3. Resonance Lab (speed of sound)
On the brads include 4 (four) of the following:
         Table of contents showing contents of just the center section. Make sure to number pages in this section Make
scotch tape tabs to show starting page of each assignment.
         ***Do only three if you get creative in one of the sections and include a drawing with “added” materials (yarn,
colored paper, straws, wood, paint) to give added dimension OR those with musical talent perform for the class (sing
or play) music of your choice on a designated day.
        Part One: Draw and label a picture (landscape ) of a human ear and discuss how the ear functions.
        Part Two: Research to answer these questions about noise pollution:
                 1. How can intense vibrations damage the human ear?
                 2. How can an individual reduce the amount of noise that reaches his or her ears?
                 3. What damage, other than hearing loss, can be caused by noise pollution?
                 4. Describe some measure that can be taken to reduce noise pollution.
                 5. Name some common sources of noise pollution.
                 6. How is loudness measured and what level does it begin to be harmful?
                 7. A list of your source(s) for answering these questions.
        Part Three: Describe what creates seismic waves (from an earthquake) and identify the different types of waves
produced. How do the waves differ – consider shape and mediums through which each will travel. List source(s) of
information.
        Part Four: What is sonar and how is it useful?
        Part Five: What is ultrasound and how is it useful from a medical aspect?
        Part Six: Methods of transferring or storing information:
                 1. Speakers: include a diagram of a speaker, labeling the parts, then discuss their operation.
                 2. Audio and vide0 (ipods, MP3 player, jump drives, CDs, etc): how is information recorded on them
                    and then retrieved?
        Part Seven: Music
                 1. Draw pictures of a fundamental tone and several harmonics.
                 2. What are overtones?
                 3. How does music affect moods?

Each physics student will turn in a portfolio. The due date is Tuesday, March 20, 2012.

Grading Criteria:
       1. Followed directions (on time, as assigned)
       2. Correct mechanics (spelling, punctuation, and capitalization
       3. Sentences complete and word choice correct
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       4. Work and drawing neatly typed, written or drawn (no computer printouts allowed)
       5. Organized according to above directions
Productivity Skills:
       1. Used common sense in making decisions (this includes the labs)
       2. Managed workspace and time (especially time allowed in class and computer lab)

Graded portfolio checks will occur randomly during this assignment. You will be expected to be on task and show
accomplishments. Your grades will reflect your accomplishments.

Waves and Sound Learning Objectives

You need to know/use/solve for the following:

Descriptions: crests, trough, amplitude, cycle, wavelength, sine curve relationship
Properties: reflection and the Law of Reflection, diffraction, interference, refraction, propagation, pitch, Doppler Effect,
nodes, antinodes, intensity, transfer of energy
Identify wave phenomena in everyday settings
Define frequency (Hertz, cycle per second), loudness (decibels), overtones, “in phase”
Know the difference between transverse and longitudinal waves, mechanical and electromagnetic waves

Formulas and Constants: Velocity can be found in 3 ways, dependent upon given information

V=d                  V, velocity, m/s              d, distance, m       t, time, sec
  t

V=f                 f, frequency in cycles/sec or hertz               , wavelength in m

V   temp oC   =V   OoC   + k ( temp)          V   OoC   = 331.5 m/s for sound in air at 0oC      k = 0.6 m/s oC

Intensity: I = P                        P, Power, watts                 Asphere, area = 4 r2 in cm2
              A

Intensity Level:                         = 10 log I             Io = 10-16 w/cm2
                                                   Io

Doppler Effect: Apparent frequency heard from behind (source has passed)
             F behind = Fs    V
                             V+Vs

                 Apparent frequency heard in front of approaching source
               F front = Fs      V
                                V-Vs
F, frequency in cycles/sec or hertz, hz         F, frequency of the source
V, velocity of sound at given temperature
Vs, velocity of source

								
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