Wave Phenomena

5E- Model - Lesson Plan - CSCS*  - Continuous Formative Assessment is used throughout this activity.  Student data is collected through collaborative docs. 

Engage 

CSCS* - Investigating Phenomena

• Sound  waves- Using a sound analysis app (such as a sound analyzer, spectrum analyzer or oscilloscope app), measure and compare the frequency and amplitude of at least three different sound sources (e.g., a tuning fork, a musical instrument, your voice, a phone ringtone, talking, humming, whistling,  guitar string). What patterns do you observe in the waveforms and spectrograms, and how do they relate to pitch and loudness? Include graphs or movies of your waves in this slide show.

• Seismic waves -  Using a smartphone seismograph app, record and analyze vibrations caused by different activities or impacts (e.g., walking nearby, dropping a book, tapping the table, jumping). Compare the amplitude and frequency of the waves produced. What do the differences tell you about how energy travels through different surfaces or materials?

Explore 

CSCS* - Pooled data analysis

• • Using the PhET pendulum simulator, investigate the  relationship between the following variables and the period of the pendulum.  Assume zero friction on Earth's surface

    • Mass - Keep the length constant while varying the mass.

    • Length - Keep the mass constant while varying the length.

    • Input your data here

    • Create graphs of period as a function of mass and length

  • Explore the the various types of waves (longitudinal, transverse, surface, etc.) using this oPhysics tutorial

  • Electromagnetic waves-  Using a magnetometer app  (e.g.  Magnetometer in Physics Toolbox App) on your smartphone, measure and record the magnetic field strength (in µT or mG) near at least three different electrical appliances (e.g., microwave, refrigerator, laptop, phone charger). Analyze your data to determine which appliance emits the strongest field, and explain what might cause the differences observed. Save, export and plot (in Google sheets, Numbers, or Excel) magnetic field strength data (x,y,z planes).  How do the magnetic field strengths of common household electrical appliances compare, and what factors influence the intensity of the fields detected?

Explain

CSCS* - Explanatory & Predictive Models

Pendulum - Simple harmonic motion

• • • • How is pendular motion similar to wave motion?  Explain the underlying cause for the sinusoidal behavior of a pendulum. 

      • What trendlines best describe the data collected in the previous section?  

      • Create and test an equation  using Desmos Graphing Calculator that describes the relationship of a the period as a function of mass and length.  Explain its meaning. (sample)

      • Compare with data from a physical pendulum

Simple harmonic motion & waves

• • • • Explore this MyPhysicsLab simulation on waves. What efect does mass and pendulum length have upon the period of the pendulum?

      • Manipulate the variable in these oPhysics simulations relating simple harmonic motion, and circular motion to waves as well as this simulation  of longitudinal & transverse waves.   After manipulating these simulations,  describe the following terms in your own words:  wavelength, frequency, amplitude.

Fourier Series

• Experiment with the superposition of sine waves in this Desmos activity. Explain how complex waves are made from sine waves of different frequencies and amplitudes.  Create complex waves from sine waves using the Fourier PhET. 

Elaborate / Extend

CSCS* - Collaborative resource development  

• • Generate a set of terms related to wave phenomena using ChatGPT. Collaborate to create a Quizlet Flash Card set on waves.

  • Select a wave phenomenon and describe facts about and uses of the phenomenon in this collaborative presentation. Share about your wave phenomenon in a class presentation. 

Evaluate 

• CSCS*  - Continuous Formative Assessment

  • Complete the Gizmos activity on waves.

  • Complete Gizmos Activity on waves associated worksheet on waves.  Provide a link to your doc in the quickwrite so it can be monitored by your instructor

  • Perform the Quiz on waves in Quizlet

  • Play Quizlet Live - Teams will be in breakout rooms on Zoom, while the scoreboard will be visible on Meet.