Recent Tutoring Session Reviews
"The student and I covered example problems using free body diagrams, inclined planes, tension, friction, Newton's laws, spring force, and kinetic/potential energy. He understood the concepts I presented him. He and I built a crib sheet with some important formulas to help him study for his test."
"Tonight we reviewed for the student's physics test on Friday. He is in the middle of midterms and so we will review tonight and tomorrow night. Tonight we covered geometrical optics, light, and colors. I found some great images online for geometrical optics and printed them off. The only way to be convinced of where an image forms is if you draw the diagram perfect and these pictures did the job. We started with the law of reflection, Snell's law, and total internal reflection. In describing Snell's law I made sure that he knew what the index of refraction is, as well as the angles. From Snell's law I gave him a thought experiment of what happens when a light ray is exiting water and entering air. If we increase the angle to the normal more and more, the angle of refraction eventually becomes 90 degrees. Then we dove into total internal reflection. We discussed the usual applications of fiber optics and diamond cutting. The student seems very comfortable with this part of physics. We then covered geometrical optics. Starting with a plane mirror and then moving to convex and concave mirrors. I made sure he knew how to quickly sketch a ray diagram and the two rays needed to find out where the image will form. We also discussed virtual images and how to tell when an image is virtual. We moved on to lenses and we worked some examples of both positive and negative lenses. He told me the test would be all multiple choice and showed me a test bank online his teacher gave the class. As we worked through the problems I showed him how to eliminate some answers based on what you know about the question. Even if you don't know the rest of the answer you can at least narrow down the choices. Tomorrow night we will work some problems from his textbook and the classes' workbook. I think the student is very bright with physics and has a grasp on it like his trigonometry. He just needs motivation and meetings with a tutor to force him to spend some of his time outside school studying. He is always great to work with."
"We studied for the student's upcoming test on centripetal motion, orbital motion, and gravitational effects. We worked through online problem sets and discussed test strategies. I recommended that the student make a formula sheet and flashcards to make it easier to memorize formulas. Also recommended that he pay attention to units and use units to figure out what formulas to use."
"In this tutoring session, we finished working on and discussing problems for chapter 13. Most of these problems required us to use conservation of angular momentum and conservation of energy to find the elliptical path that would be followed by a projectile. This was very intense algebra for the first equation we solved this way, but it was used in several problems. The last two problems looked at finding the gravitation force and potential equations for non-standard geometries, which required the use of calculus to integrate the gravitational interaction over distance."
"The student and I covered the solution methods we would apply for the previous final exam for his physics 3 course. We then continued coverage of the general topics from his class, including Doppler effect, Bernoulli's equations, ideal gas laws, and simple harmonic motion."
"The student and I began our session today with an overview of magnetic fields and magnetic forces. Magnetic fields can be created by magnetic dipoles or moving charges, and only affect charges if they a moving. We discussed the two different right hand rules, which will play an important role in calculating magnetic fields caused by currents, and magnetic forces on moving charges. We then began to review previous chapters, because she has a midterm next week. Today we covered chapter 19 in depth, going through all of the example problems and "check your understanding" problems in her textbook. Although it did take a long time to go through the chapters in such detail, I believe that it gave her a deeper understanding of the concepts, and will help her retain this information."