Recent Tutoring Session Reviews
"We practiced calculating speed from kinetic energy, using the formula KE = (1/2)*m*v^2. We practiced calculating the radius of the circular path of a charge in a magnetic field, using the formula r = (m*v)/(q*B). We practiced using the right-hand rule to show why a charged particle moving in a magnetic field would move in a circle. We went over how the electric and magnetic forces balance in a velocity selector. We practiced finding the strength of a magnetic field produced by a current in a long straight wire. We practiced calculating vector sums of B fields pointing in different directions. The student did well with holding on to all the concepts covered previously and bringing them together in the right combinations at the right time."
"Today, we covered an electromagnetic wave problem. It took most of the session to complete. The problem concerned the rate of change of the B field of an isotropic light source. Solving the problem required knowledge of the wave equation; the relationship between E and B; the equation wf=c; and the relationship between power, intensity, and distance from the source. After that problem, the next problem required similar ideas, so it was much easier to do."
"The student and I have met the last couple of weeks and done more math than physics. She's working on a bunch of geometry problems, many involving interior angles of triangles, and she's been doing an excellent job on all of her quizzes. Her math test is this week, so we reviewed all the concepts and ensured that she's feeling confident. For next week, we'll be sure to do more physics so that she's ready for the exam next Tuesday."
"We covered electromagnetics, finding the area of magnetic flux, or torque. The student was very receptive to help and patiently applied principles in an accurate manner. I included the analogy of a hoop placed in a waterfall as a way of understanding magnetic flux. She is able to understand difficult concepts through patience"
"The student and I continued prepping for his test today. We discussed quantum mechanics, rotational motion, and collisions. He understands the physics behind each problem, but sometimes struggles with the algebra. Assuming we can overcome this, his test will go well."
"The student was preparing for an exam on magnetic fields and forces, and electromagnetic induction. This was a topic involving several different aspects which we tried to cover in one session (a great challenge), focusing on the expressions force and inducing EMF. I think we made some progress, but covering so much in one session was very tricky."