Investigation 10.2

  To start the class off, we went over questions from the text that were assigned yesterday. We reviewed the universal wave formula which is v=fλ and can be manipulated to apply it to what the question's asking for. A good way to use this is the universal wave triangle. Cover up which ever variable you are needing to find out and what's left should give you the proper formula. For example, if you need to figure out the frequency, cover the f with your finger and what's left is v over λ. So your formula would now be, f= v/λ.

  After that, we looked at Investigation 10.2: Transmission and Reflection of a One-Dimensional Transverse Wave. The problem is, how is a transverse wave in a coiled spring transmitted and reflected? We got into groups and were assigned to experiment and examine results when we followed the procedure done with a slinky. After observing results, we wrote down the information we had to best answer the question in the procedure. We were also assigned questions 1-6 although we did not have sufficient time to get through all the assigned material.

The next blog post will be submitted by Mackenzie.

Mid-Chapter Review

  We started the class off by reviewing a few questions from our previous assignment. We also reviewed that proofs need to be based on facts. For example if two parallel lines are cut by a transversal, and we need to prove that angle  d is 73°, we would say that angle c is 107° because it is the corresponding angle to the one labeled 107°. Next we would say that since angle d is supplementary to c, and c is 107° therefore angle d is 73° because supplementary angles must add up to 180°.

  We then got into groups where each group was assigned a question from the mid-chapter review from pg. 84. We were to answer the question we were given, and then show and explain our work on the overhead projector. Since it was a half day and we did not have time for anything else, we dispersed joyfully when the lunch bell rang. A diagram has been provided to accurately represent the level of joy.
The next to post in the blog will be Tanner.