• Imagine a superfast fish that is able to swim faster than the speed of sound in water. Would this fish produce a "sonic boom"?
• Use the concepts from this module to explain why flying bees buzz.
• If the handle of a tuning fork were to be handled firmly against a table, would the sound from the tuning fork change? If so, what would change?
• The strings of a harp have different length in order to produce different notes. However, given that the strings in a guitar have all the same length, how are the different notes produced?