Learning Outcomes for Waves and Sound

 

Lesson Plans || Learning Outcomes and Activities || Teacher Notes || Labs
 

The list below displays sample learning objectives for the unit on Waves and Sound. The various activities from the Lesson Plans have been organized by objective. This format of organizing The Physics Classroom's activities may be more useful to some teachers than the Lesson Plan format. It is worth noting that the activities identified below only include those activities included on the Lesson Plans and in the Pre-Built Task Tracker courses. Additional activities are referenced on the Teacher Notes page.

 

1. Vibrations

Recognize the distinction between a vibration and a wave; define and identify the units of frequency and period; calculate the frequency and the period from given information.
 

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2. The Nature and Categories of a Wave

Describe the nature of a wave as repeating and periodic disturbance that moves through a medium by particle-to-particle interaction to transport energy from the vibrating source to distant locations; describe various contrasting categories of waves - such as longitudinal and transverse - using words and diagrams.
 

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3. Properties of Waves

Describe (in words, and with diagrams and/or equations) wave properties such as amplitude, wavelength, frequency, period, and speed; identify the units of each and determine their values if provided sufficient information.
 

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4. Wave Speed

Identify the variables that affect and do not affect the speed of a wave in a given medium; calculate the wave speed from distance-time information or from wavelength-frequency information.
 

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5. Behaviors of Waves

Use words and diagrams to describe a variety of wave behaviors such as reflection/transmission at a boundary and interference.
 

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6. Standing Wave Patterns and Harmonics

Discuss how a standing wave pattern is formed; describe and diagram the standing wave pattern for the first five harmonics; related the frequencies and wavelengths of the various harmonics to the frequency and wavelength of the first harmonic.
 

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7. Nature of a Sound Wave

Describe the nature of a sound wave as a longitudinal, pressure wave that requires a medium to propagate from the vibrating source to a distant location; identify the compressions and rarefactions in a diagram and relate these regions to the relative pressure.
 

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8. Properties of Sound Waves

Describe properties of sound waves such as frequency (pitch), wavelength, speed, intensity (and the relationship to distance), and the deciBel rating; perform calculations of wave speed, intensity, and the deciBel rating if given sufficient information.
 

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9. Resonance

Explain what resonance is and the result of resonance; draw the standing wave patterns for various resonances or harmonics; relate the frequencies of the harmonics to one another.
 

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10. Harmonics in Vibrating Strings

Construct the standing wave pattern for the first five harmonics of a resonating string; relate the frequencies and wavelengths of these harmonics to the frequency and wavelength of the fundamental; conduct a full mathematical anaysis of a resonating string.
 

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11. Harmonics in Closed-End Air Columns

Construct the standing wave pattern for the first five harmonics of a resonating air column (closed-end); relate the frequencies and wavelengths of these harmonics to the frequency and wavelength of the fundamental; conduct a full mathematical anaysis of a closed-end, resonating air column.
 

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12. Harmonics in Open-End Air Columns

Construct the standing wave pattern for the first five harmonics of a resonating air column (open-end); relate the frequencies and wavelengths of these harmonics to the frequency and wavelength of the fundamental; conduct a full mathematical anaysis of a open-end, resonating air column.
 

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Review Activities

 

Also Available ...

Physics teachers may find the following for-sale tools to be useful supplements to our Lesson Plan and Pacing Guide section:

 

1. Task Tracker Subscription (annual purchase)
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2. The Solutions Guide
   We publish a free curriculum with >200 ready-to-use Think Sheets for developing physics concepts. The Solutions Guide is a download containing the source documents, PDFs of source documents, and answers/solutions in MS Word and PDF format. An expanded license agreement is included with the purchase. (Cost: $25 download)
    
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4. Question Bank
   We distribute a Question Bank that includes more than 9300 questions neatly organized according to topic. The Question Bank is the perfect tool for busy teachers or new teachers. Even if you don't use the website with your classes, the Question Bank will assist you in quickly putting together quizzes, tests and other documents with high-quality questions that target student's conceptions of physics principles. And if you do use The Physics Classroom website, the Question Bank is the perfect complement to the materials found at the website. (Cost: $25 download)