Vibration and Sound

The first part of class we discussed our study guides. We went over those very quickly. The second part of the class we did a lab. In this lab we had a metal thing that we would hit on a block of wood and then hit an object. The first thing we hit was water. The tool was dipped into the water and it made the water jump. The next thing we tried was a ball. The ball bounced back of the tool. The next item we tested was a piece of paper. The paper vibrated and made a loud noise. The noise sounded like something was touching different lines in the paper. Next, we held the tool up to our cheeks. This made a vibration on our cheeks. It felt like someone was rubbing a massager on our cheek. Next, we tried the two cups tied together with string. We hit the paper clip inside the strings. The sound and vibration went all the way across the string to the other cup. This made a semi-high pitched sound. The last thing we tried was a huge round cylinder but it was not enclosed. There was no ends. This made a lower sound noise. This lab was fun. It would be great to do with my students. The students could also bring items from home to try too!