This physics video tutorial explains the concept of sound waves and how shows you how to calculate the wavelength, frequency, and velocity of sound waves. It also shows you how to calculate sound intensity, intensity level in dB or decibels, beat frequency, and how to solve problems with open and closed organ pipes / tubes plus the doppler effect. This video contains the formulas and equations that you need for this chapter / topic as well as many examples and practice problems.

Here is a list of topics:

1. Sound Waves - Transverse vs Longitudinal Waves

2. Pressure Waves - Compression vs Expansion / Rarefaction

3. Speed of Sound vs Density, Elastic Modulus, and Temperature Equation / Relationship

4. Speed of Sound Calculations in Helium gas and in Seawater

5. Audible Range Frequency - 20 Hz to 20,000 Hz

6. Subsonic, Supersonic, Infrasonic, and Ultrasonic Vocabulary Terms

7. Pitch vs Loudness - Frequency vs Amplitude

8. Mechanical Waves - Trough, Crest, Period, Frequency - Cycles Per Second

9. Sound Intensity Formula - Power, Surface Area & Inverse Square Law

10. Power, Work, Energy and Time Calculations - Intensity

11. Units of Intensity - Watts per Square Meter

12. Sound Intensity Level Equation - Decibels - dB & Loudness

13. Intensity, Amplitude, Frequency, Speed and Density Formula

14. Threshold of Hearing Reference Intensity Level

15. Vibrating Molecules - Air Displacement vs Pressure

16. Standing Waves on a String Formulas

17. Wave Velocity, Tension Force, Linear Density of String / Wire - Mass Per Unit Length Problems

18. Nodes and Antinodes Physics

19. Fundamental Frequency and Harmonics Explained

20. Harmonic Motion, Overtones, and Octaves of Middle C

21. String Length, Wavelength and Frequency Calculations

22. Vibrating Columns of Air - Flute, Clarinet, and Pipe Organs

23. Pipe Organs - Closed at one end and open at both ends

24. Standing Waves - Open Tubes and Closed Tubes - Air Columns

25. Displacement of Air vs Pressure - Standing Wave, Nodes, & Loops

26. Odd Harmonics For Closed End Tube / Organ Pipe

27. Constructive and Destructive Interference

28. Principle of Superposition - Two Speakers Problem

29. Beat Frequency Physics

30. Doppler Effect - Sound in Motion - Frequency Shift

31. Wave Crest - Compression and Expansion -

32. Frequency of Observer and Source

33. Source Moving Toward and Away From Observer - Increasing vs Decreasing Frequency

34. Doppler Effect Problems - Police Car, Siren of Ambulance Truck, Direction of Moving Object or Observer, Speed of Sound in Seawater, and Reflected Wave Problem

35. Successive Harmonics and Fundamental Frequency

36. Frequency and Temperature Calculations

Tagged under: sound waves,sound intensity physics,physics,beat frequency physics,doppler effect physics,waves,standing waves physics,fundamental frequency harmonics,nodes antinodes physics,constructive destructive interference,intensity level,decibels,beat frequency,antinodes,doppler effect,sound intensity,organ pipe,air column,open,closed,fundamental frequency,harmonics,overtones,amplitude,wavelength

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