Sound waves blog

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Summary: 

A wave is caused by a disturbance in something and a wave is something that travels from one place to another. There are lots of examples like sound waves and how they have the molecules hit each other and vibrate to get from one place to the next. A crest is the top of a wave and the bottom is called a trough. Amplitude is a part of a wave and it is how large the wave is from the middle to the top or the middle to the top or bottom. The wave length is how long it is from one though or crest to the next. Frequency is what changes the wave length and it changes the speed of the wave. Tension is how much slack something has so the higher the tension the smaller the waves because there is less slack.

S&EP:

We used a rope to show waves and we wanted to find out how we could change all of the things like the amplitude and frequency. We would place our rope on the floor and we would have one person hold one end still and the other would move the other end of the rope. To make it so that we would change the frequency aka the speed what we did is we would move it side to side faster or slower. To change the amplitude what we would do is we would move our arm side to side further so we would make it so that we would start out with small motions and we moved to larger motions to increase the amplitude. We also changed the tension by moving further and closer to each other and the further we were the harder it was to move.