Physics Traditional: Unit 11 "Waves & sound"

01 - Waves & Sound
Summary: In this unit you learn what wave basics including wave anatomy and the wave speed equation which relates frequency, wave length and wave speed. Next, you learn about waves traveling through air (sound waves) and how the speed of sound depends on temperature, what it means for a sound to be loud and what the Doppler effect is. The Doppler effect creates shock waves in air and bow waves in water and a little knowledge of wave interference is necessary to understand this. In the final part of this unit, you apply this knowledge in some deeper ways to learn about how simultaneous waves reflect and interact creating standing waves. You also learn about harmonics (natural frequencies) and resonance.

Resources: Chapters 11, 12, work packet, notes, website, handouts.

Calendar

Unit 11: Waves & Sound

Vocabulary & Equations

Objectives, vocabulary & equations

Other important files (resources)

  1. Work packet

Tutorials (right-click and save file locally ("save target as"), then play)

  1. Wave introduction tutorial
  2. Notes 11-01: Wave anatomy, interference, superposition, wave reflections, standing waves
  3. Notes 11-03: Short Slinky Prelab notes
  4. Notes 11-05: Wavespeed math, echo problem, doppler, shock waves, bow waves, mach shape
  5. Notes 11-08: Resonance, harmonics, closed/open resonators, Western musical scales
  6. Notes 11-10: Beats, three sounds scales (dB, intensity, loudness)

More Links

  1. LAB: Audacity (sound wave analyzer program)
  2. Notes 11-01: Wave anatomy, interference, superposition, wave reflections, standing waves
  3. Notes 11-03: Short Slinky Prelab notes
  4. Notes 11-05: Wavespeed math, echo problem, doppler, shock waves, bow waves, mach shape
  5. Notes 11-08: Resonance, harmonics, closed/open resonators, Western musical scales
  6. Notes 11-10: Beats, three sounds scales (dB, intensity, loudness)
  7. Kettering wave models
  8. EM explanation including numbers
  9. PHET sound & waves modeling
  10. LAB: Wave Phun Part 1: Transverse waves (may need to install shockwave to run these 5 parts)
  11. LAB: Wave Phun Part 2: Transverse waves (white, red, yellow sim.)
  12. LAB: Wave Phun Part 3: Longitudinal waves
  13. LAB: Wave Phun Part 4: Wave boundaries (Reflected waves - fixed and free end systems)
  14. LAB: Wave Phun Part 5: Superposition of waves ( Wave interference model)
  15. Shockwave download (if necessary to run a computer lab simulation)
  16. Doppler effect 01
  17. Harmonics on a violin string
  18. Doppler effect 02
  19. Doppler effect 03
  20. Doppler explanation page
  21. Doppler ambulance model
  22. Doppler donut cop
  23. Wave boundary explanation page - good demos
  24. Audible beats demo
  25. Sound wave demo - good rarefaction/compression illustration
  26. String harmonics 01
  27. String harmonics 02
  28. Simple tone generator Windows program made by Mr. Williams
  29. Glenbrook's wave page - good lessons!
  30. Nice physics of sound review (HARMONICS well explained!)
  31. Beats demo 1
  32. Beats demo 2
  33. Site with interesting physics demos
  34. Beats demo 3