Chapter 17 Mechanical Waves & Sound. WHY IS THIS???. 17.1: Mechanical Waves. What types of waves can you identify in a wave pool @ at amusement park?. In a wave pool, energy is being carried across the pool in the form of waves.
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WHY IS THIS???
Which has the highest frequency? _______Which has the lowest frequency? _______ Which has the shortest wavelength? _______ Which has the longest wavelength? _______
Speed = WAVELENGTH x FREQUENCY
What do you think of when you hear the word reflection?
Now…relate that thought to waves!!!
A wave diffracts more if its wavelength is large compared to the size of an opening or obstacle
Here's what sound waves look like. The caption reads, "A visible pattern of sound waves. This new technique of studying sound demonstrates the focusing effect of an acoustical lens on sound waves issuing from the horn at extreme left.
Intensity depends on wave’s amplitude (energy) and distance from the sound source