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Waves Light and Sound Physlets

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					                                                  Web Activities
                                               Waves, Sound, and Light


General Wave Properties
Physlet - Transverse Wave and Longitudinal Wave
          http://www.phy.ntnu.edu.tw/java/waveType/waveType.html
Physlet - Transverse Traveling Wave
          http://www.phy.ntnu.edu.tw/java/wave/wave.html
Menu - Waves
          http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/#waves
Menu - Waves
          http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/wavestoc.html
Animation - Longitudinal Pulse
          http://www.physicsclassroom.com/mmedia/waves/lw.html
 Diagrams and Explanations – Nature of a Wave
          http://www.physicsclassroom.com/Class/waves/U10L1a.html
 Diagrams and Explanations – Properties of a Wave
          http://www.physicsclassroom.com/Class/waves/U10L2a.html
Physlet – Wave Simulator
          http://www.nationalgeographic.com/volvooceanrace/interactives/waves/index.html
Movie – Wave Basics
          http://www.archive.org/download/AP_Physics_B_Lesson_42/Container.html
Movie – Properties of Traveling Waves
          http://www.archive.org/download/AP_Physics_B_Lesson_43/Container.html
Interactive Notes
     http://www.stmary.ws/physics/home/notes/waves/default.htm

    1.   What do all waves transfer?
    2.   Describe the motion of the medium of a transverse wave.
    3.   Describe the motion of the medium of a longitudinal wave.
    4.   A sound wave is a mechanical wave; not an electromagnetic wave. What does this mean?
    5.   A science fiction film depicts inhabitants of one spaceship (in outer space) hearing the sound of a nearby spaceship as it
         zooms past at high speeds. Critique the physics of this film.

Superposition and Standing Waves
Physlet - Superposition of Wave Pulses
         http://www.phy.ntnu.edu.tw/java/wave/impulse.html
Animation - Standing Wave Formation on a String
         http://www.physicsclassroom.com/mmedia/waves/swf.html
Diagrams and Explanations – Behavior of Waves
         http://www.physicsclassroom.com/Class/waves/u10l3c.html
Animation, Diagrams, and Explanations – Standing Waves
         http://www.physicsclassroom.com/Class/waves/U10L4a.html
Movie – Properties of Standing Waves
         http://www.archive.org/download/AP_Physics_B_Lesson_44/Container.html


    6.  Two wave pulses interfere on the same side of a string. Describe the following properties of the resultant wave formation
        when the pulses are positioned on the same position on the string:
           a. Wavelength
           b. Amplitude
    7. What is the name of the type of interference that occurs when the wave pulses meet on the same side of the string?
    8. Describe what happens to the wave pulses after they interfere with one another?
    9. Two wave pulses interfere on opposite sides of a string. Describe the following properties of the resultant wave formation
        when the pulses are positioned on the same position on the string:
           a. Wavelength
           b. Amplitude
    10. What is the name of the type of interference that occurs when wave pulses meet on the opposite side of the string?
    11. Describe what happens to the wave pulses after they interfere with one another? Did your answer to this question change
        your answer to question #8?
    12. Standing waves form when at least two other waves interfere. On a standing wave, a pattern of nodes and antinodes will
        form.
            a. Describe what is happening with the interfering waves to form a node.
            b. Describe what is happening with the interfering waves to form an antinode.
    13. What properties must be the same for interfering waves so that they form a standing wave?


Interference and Diffraction of Waves
Physlet - Interference Between 2 Waves
         http://www.phy.ntnu.edu.tw/java/waveInterference/waveInterference.html
Physlet - Ripple Tank
         http://webphysics.davidson.edu/applets/ripple4/default.html
Physlet - Double Slit
         http://www.phy.ntnu.edu.tw/java/doubleSlit/doubleSlit.html
Animations and Videos - Resonance
         http://www.regentsprep.org/Regents/physics/phys04/bresonan/default.htm
Animation - 2-Point Source Interference Patterns -Changing Separation Distance
         http://www.physicsclassroom.com/mmedia/waves/ipd.html
Animation - 2-Point Source Interference Patterns - Changing Wavelength
         http://www.physicsclassroom.com/mmedia/waves/ipl.html
Diagrams and Explanations – Behavior of Waves
         http://www.physicsclassroom.com/Class/waves/u10l3c.html
Movies – Interference and Diffraction
         http://www.archive.org/download/AP_Physics_B_Lesson_46/Container.html
Movies –Tacoma Narrows Bridge Collapse
         http://www.physics.utoronto.ca/~jharlow/teaching/phy138_0405/lecw02/Tacoma.MOV
         http://paginas.fe.up.pt/~jmcarval/fis2/tacoma/tacoma_narrows.mov
         http://www.enm.bris.ac.uk/anm/tacoma/tacnarr.mpg
         http://www.tau.ac.il/~simcha/Tacoma-a.mov
Movies – Myth Busters – Breaking a Glass
    http://video.google.com/url?docid=-
    7765557442856739526&esrc=gvpl&ev=v&q=myth+buster+and+breaking+glass&vidurl=http://video.google.com/videoplay%3Fdocid%3D-
    7765557442856739526%26q%3Dmyth%2Bbuster%2Band%2Bbreaking%2Bglass%26hl%3Den&usg=AL29H230CjxCUfGVnoVfSfHd2cyVxV9mvQ



    14. Describe the resultant wave formation when the crests of two waves interfere. What is the name of the phenomenon that
        creates this formation?
    15. Describe the resultant wave formation when the crests of one waves interferes with the trough of another. What is the name
        of the phenomenon that creates this formation?
    16. Describe the pattern that forms when two sources create waves. (be specific)
    17. Describe what conditions need to be met in order for a glass to shatter only from a noise.
    18. Why did the Tacoma Narrows Bridge Collapse (be specific)?
    19. What is the relationship between an objects natural frequency and the conditions necessary to create resonance?


Sound
Menu – Sound Waves
        http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/#sound_waves
Reference – Sound and Hearing
        http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
Animation - Tuning Forks and Longitudinal Waves
        http://www.physicsclassroom.com/mmedia/waves/tfl.html
Animation - Sound Waves and the Eardrum
        http://www.physicsclassroom.com/mmedia/waves/edl.html
Animation - Standing Waves on a String - 1st Harmonic
        http://www.physicsclassroom.com/mmedia/waves/harm1.html
Animation - Standing Waves on a String - 2nd Harmonic
        http://www.physicsclassroom.com/mmedia/waves/harm2.html
Animation - Standing Waves on a String - 3rd Harmonic
          http://www.physicsclassroom.com/mmedia/waves/harm3.html
Animation - Standing Waves on a String - 4th Harmonic
          http://www.physicsclassroom.com/mmedia/waves/harm4.html
Animation - Standing Waves on a String - 5th Harmonic
          http://www.physicsclassroom.com/mmedia/waves/harm5.html
Movie – Sound Waves and Doppler Shift
          http://www.archive.org/download/AP_Physics_B_Lesson_45/Container.html
Interactive – The Virtual Flute
          http://www.phys.unsw.edu.au/music/flute/virtual/main.html
Movie – Infrasonic Sound Waves
          http://dsc.discovery.com/tv/future-weapons/games/cannon/cannon.html


    20. Sound Waves are mechanical and longitudinal:
            a) Describe what it means to be mechanical.
            b) Describe what it means to be longitudinal.
    21. Describe the relation ship between harmonic number, nodes and antinodes for a string instrument fixed at both ends.


Doppler Effect
Physlet - Doppler
         http://webphysics.davidson.edu/applets/applets.html
Diagrams and Explanations – Behavior of Waves
         http://www.physicsclassroom.com/Class/waves/u10l3c.html
Diagrams and Explanations – Doppler Effect
         http://www.physicsclassroom.com/Class/waves/U10L3d.html
Video – F14 Tomcat Breaking the Sound Barrier
         http://www.brewsterschools.org/brewster/brewsterhigh/plamoreaux/assets/sonicboom.mpg
Movie – Sound Waves and Doppler Shift
         http://www.archive.org/download/AP_Physics_B_Lesson_45/Container.html

    22. As the source of sound is moving towards an observer describe the following properties of the perceived sound wave:
             a) pitch
             b) frequency
             c) wavelength
    23. As the source of sound is moving away from an observer describe the following properties of the perceived sound wave:
             a) pitch
             b) frequency
             c) wavelength
    24. If an object is moving right at the speed of sound, the waves bunch up in the front the moving object.
             a) Describe the wave that would result in the front of the moving object.
             b) Describe how that sound wave would be perceived.
    25. In the video, the white cloud is water vapor not smoke. Why do you suspect that the water vapor condenses at the exact
        instant that the plane is crossing the sound barrier?


Beats
Physlet - Sound Out (Select Sound Out from the left menu)
         http://webphysics.davidson.edu/applets/java11_Archive.html
Reference and Sound Links – Sound Beats
         http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/tornado/beat.html
Explanation and Diagrams - Beats
         http://www.saburchill.com/physics/chapters2/0016.html
Physlet – Gizmo – Sound Beats
         http://explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=48&
Physlet – Gizmo – Beat and Sine Waves
         http://explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=524&
Physlet - Beat
         http://library.thinkquest.org/19537/java/Beats.html


    26. Describe what is happening when an observer hear the loud portion of a beat.
    27. If a frequency of 400 Hz is played, what other frequencies could be used to produce a 3 Hz beat?


Light
Reference – Light and Vision
         http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
Animation - Propagation of Electromagnetic Waves
         http://www.physicsclassroom.com/mmedia/waves/em.html
Physlet – Electromagnetic Waves
         http://webphysics.davidson.edu/applets/wave3d/default.html

    28. Light Waves are electromagnetic and transverse:
             a) Describe what it means to be electromagnetic.
             b) Describe what it means to be transverse.
    29. In an electromagnetic wave, describe disturbance in the magnetic field relative to the disturbance in the electric field and the
        direction that the wave is traveling.

Reflection
Physlet - Billiards and Physics
         http://www.phy.ntnu.edu.tw/java/billiards/billiards.html
Animation - Reflection of a Pulse at a Fixed End
         http://www.physicsclassroom.com/mmedia/waves/fix.html
Animation - Reflection of a Pulse at a Free End
          http://www.physicsclassroom.com/mmedia/waves/free.html
Animation - Reflection: Echo vs. Reverberation
         http://www.physicsclassroom.com/mmedia/waves/er.html
Animation - The Law of Reflection
         http://www.physicsclassroom.com/mmedia/optics/lr.html
Physlet - Reflection
         http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=194&
Physlet – Laser Reflection
         http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=414&
Movie – Reflection and Refraction
         http://www.archive.org/download/AP_Physics_B_Lesson_48/Container.html
Movie - Mirrors
         http://www.archive.org/download/AP_Physics_B_Lesson_49/Container.html
Physlet – Rotation, Reflection, Translation
         http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=269&


    30.   In the “Physlet – Billiards and Physics,” what is the color of the ball that represents the cue ball?
    31.   If a wave pulse traveling on a string strikes a fixed endpoint descript the reflection of that pulse.
    32.   If a wave pulse traveling on a string comes to a free endpoint descript the reflection of that pulse.
    33.   What is the common name for the reflection of a sound wave?
    34.   What is the relationship between the angle of incidence and the angle of reflection?
    35.   What line are both the angle of incidence and the angle of reflection measured relative to?

Refraction
Physlet - The World Above the Water Surface
         http://www.phy.ntnu.edu.tw/java/fishEye/fishEye.html
Animation - Boundary Behavior of Pulses Transmission from a Less Dense to a More Dense Medium
         http://www.physicsclassroom.com/mmedia/waves/ltm.html
Animation - The Broken Pencil
         http://www.physicsclassroom.com/mmedia/optics/bp.html
Menu - Refraction and the Ray Model of Light
         http://www.physicsclassroom.com/Class/refrn/refrntoc.html
Physlet – Snell’s Law
         http://www.physics.nwu.edu/ugrad/vpl/optics/snell.html
Movie – Reflection and Refraction
         http://www.archive.org/download/AP_Physics_B_Lesson_48/Container.html
Movie – Dispersion of Light and the Electromagnetic Spectrum
         http://www.archive.org/download/AP_Physics_B_Lesson_47/Container.html
Physlet – A Basic Prism
         http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=13&
Reference – Refraction
         http://online.cctt.org/physicslab/content/Phy1/lessonnotes/refractionoflight/refraction.asp
Physlet – Refraction at a Boundry
         http://physics.gac.edu/~chuck/PRENHALL/Chapter%2026/AABXTET0.html


    36. When a wave travels from a dense medium to a less dense medium, describe what happens to the waves:
             a. Speed
             b. Wavelength
             c. Frequency
    37. When light passes from a less optically dense medium into a more optically dense medium, will it bend towards or away
        from the normal?
    38. When light passes from a medium with a high index of refraction value into a medium with a low index of refraction value,
        will it bend towards or away from the normal?
    39. What is a critical angle?
    40. What part of you body utilizes refraction right now as you work?



Polarization
Movie and Reference - Polarization of Waves
         http://www.regentsprep.org/Regents/physics/phys04/cpolarize/default.htm
Reference: Polarization
         http://www.physicsclassroom.com/Class/light/U12L1e.html
Menu: Hyperphysics
         http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/polarcon.html#c1
Physlet - Polarization
         http://webphysics.davidson.edu/applets/wave3d/circular.html

    41. If a polarizing film is aligned vertically, what alignment of wave would the polarizer eliminate?
    42. Describe the light that would penetrate through two polarizing films that were aligned perpendicularly to one another.
    43. When sunglasses are made out of polarizing lenses the polarizers are aligned vertically. Why are they constructed in this
        manner rather than having the polarizers aligned horizontally?

Optics and Mirrors
Animation - Image Formation for Plane Mirrors
        http://www.physicsclassroom.com/mmedia/optics/ifpm.html
Menu - Optics
        http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/#optics

    44. On a flat mirror, where does the image form?
    45. What is the name for the type of image formed on a flat mirror?
    46. What are other properties of the image formed on a flat mirror?


General
Video lectures by Walter Lewin at MIT
        http://ocw.mit.edu/OcwWeb/Physics/8-03Fall-2004/CourseHome/index.htm

Interactive Notes
          http://www.stmary.ws/physics/home/notes/waves/default.htm

				
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