Sound+(Chapter+15)

At the end of this chapter, students would be able to:


 * Describe how sound is produced by vibrating sources
 * Describe how sound travels as longitudinal waves using the processes of compression and rarefaction
 * Explain that sound needs a medium for transmission and the speed of sound differs in solids, liquids and gases
 * Describe a method for determining the speed of sound in air
 * Describe how the reflection of sound may produce an echo and how this may be used to measure distances
 * Define ultrasound and describe one use of ultrasound. e.g. quality control and prenatal scanning
 * Relate loudness of a sound wave to its amplitude and pitch to its frequency

Sound

- is a longitudinal waves. See the motion of particle air in response to sound. []