Unit 9 Part 1

Unit 9 is about waves and sound. This unit hit us in the face straight away with a total of 30 new vocabulary words that seemed a little intimidating at first, but after about an hour of demonstrations and explanations, it became much easier. There are two types of waves called Transverse and Longitudinal waves. The difference between the two are very different. An example of a longitudinal wave would be the sound produced by my guitar in the picture below, where as me thrashing a chord would be an example of a transverse wave. When these two waves collide, they go straight through each other and keep the consistent amplitude (height of half of a wavelength) where as if two of the same type of wave collided, the result would be the sum of their wavelengths at their collision point. In a transverse wave, there are 3 important terms. the node which is the point at which the medium appears to not be moving, the wavelength which is the distance on the equilibrium point between 2 corresponding parts of the "loops," and there is the amplitude which is the distance from the point of equilibrium and the highest point on the "loop" which is called the anti-node.