UNIT 9. WAVES AND SOUND

At the end of this unit the student should be able to:

- Define and give characteristics and examples of longitudinal,

  transverse and surface waves

- Apply the equation for wave velocity in terms of its frequency and

  wavelength

- Describe the relationship between wave energy and its amplitude

- Describe the behavior of waves at a boundary: fixed-end, free-end,

  boundary between different media

- Demonstrate proficiency in solving problems involving transverse

  waves in a string

- Distinguish between constructive and destructive interference

- State and apply the principle of superposition

- Describe the formation and characteristics of standing waves

- Describe the characteristics of sound and distinguish between

  ultrasonic and infrasonic sound waves

- Calculate the speed of sound in air as a function of temperature

- Describe the origin of sound in musical instruments

- Use boundary behavior characteristics to derive and apply

  relationships for calculating the characteristic frequencies for an

  open pipe and for a closed pipe

- Explain the interference of sound waves and the formation of beats

- Apply the Doppler effect to predict the apparent change in frequency