Recent Tutoring Session Reviews
"We went over energy transformations and applications further, discussed friction and calculated for the coefficient of frictions, and reviewed key motion points of physics 1B. I am going to email the student tonight with definitions and things to look over for the remainder of physics 1B so she will be ready to take the test tomorrow."
"We covered chapter 5 of the student's physics textbook. I tried to emphasize that what are usually called "Newton's laws" mostly just give us a definition of the concept of force and that this notion corresponds closely to a common-sense definition of force: you kick two balls with the same force, and the one with less "mass" flies away faster. We did some examples with inclined planes, pulleys, and leverage, and I found myself often breaking up a complex system like a rope into a bunch of simple systems like joined blocks, so that we could say "if a rope is not stretching the tension is the same throughout, and this tension is not affected by pulleys, so we can get mechanical advantages on things that we're pulling." We reviewed static friction especially in detail; I showed him by pushing on books on the desk what exactly we were dealing with, and hinted that when you combine a spring with a static friction you can create periodic motion -- and that this can be done by simply stroking an aluminum rod with your hand, as was done in an example in one of my physics classes."
"The student and I covered: disease and microbial communities, microbial communities and senescence, energetics of microbial communities, allergies and disease."