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Applications of Trigonometry Sound Waves
20
Transcript
Pictures, graphs and demos that facilitate understanding
http://www.neok12.com/php/watch.php?v=zX6d5740785f007905650259&t=Sound
Graph
Sound Wave
The End !
By Brianna Shaw
& Sierra Bing
Example Of A Sound Wave
http://www.math.umn.edu/~rogness/math1155/soundwaves/
What is a sound wave ?
A sound wave is a type of pressure wave caused by the vibration of an object in a conductive medium such as air. When the object vibrates, it sends out a series of waves which can be interpreted as sound. For example, when someone hits a drum, it causes the membrane of the drum to vibrate, and the vibration is transmitted through the air, where it can reach the ear of a listener. Vibrations travel at different speeds through different media, but cannot travel through a vacuum.
http://www.wisegeek.org/what-is-a-sound-wave.htm
Applications of Trigonometry
Sound Waves
Sierra Bing
Brianna Shaw
30 Block
What does sound waves have to do with trigonometry?
Objective: To understand how to apply trigonometry to periodic phenomena in the world
Sound waves and other types of waves have sinusoidal graphs. Sound waves are mechanical waves , mostly sinosoidal which means that they behave like a sine or cosine wave function.
http://answers.yahoo.com/question/index?qid=20121226121420AA6RpIi
http://wiki.answers.com/Q/What_do_sound_waves_have_to_do_with_trigonometry
Sound waves in relation to trigonometry
Period in relation to sound waves
Amplitude in relation to sound waves
The higher the frequency the faster the wave moves, the lower the frequency the slower the wave moves. When the wave moves fast the shorter the period. When the wave moves slow the longer the period
The quieter the the sound the lower the amplitude , the louder the sound the higher the amplitude. To change the amplitude of the wave change the volume of the sound
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